Condition Analysis
AI-powered assessment using site data and 14-day weather history
Recent rainfall on April 11 (3.1mm), April 12 (0.8mm), and today April 13 (0.8mm) means the rock has had no meaningful dry period. Combined with the broader wet spell from April 1–5 (16.3mm) and intermittent showers since, internal moisture levels are likely elevated despite the SW aspect and moderate winds.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland setting, though more open since 2020 tree felling and Storm Arwen, still provides shelter that reduces wind-driven drying at rock level — pockets and horizontal features in the steep rock will retain moisture longer than the surface suggests.
- Kyloe's steep, pocket-rich rock is particularly vulnerable when damp: deep pockets trap water and dry from the outside in, meaning the crucial small holds can appear dry while remaining weakened internally.
- The condition report from March 22 noted seepage from above as an ongoing concern — with 28.3mm over the last 28 days, groundwater seepage through the top of the crag is likely active.
- The 'perma-dry' reputation from older guidebooks no longer applies since canopy loss; the crag now receives more direct rainfall than historically, though it also benefits from better air circulation for drying.
Warnings
2
- Fell Sandstone loses significant structural strength at very low moisture levels — holds that feel dry on the surface may still be critically weakened internally after this repeated wetting pattern.
- The steep pocket-rich rock at Kyloe means broken holds are irreplaceable; climbing on insufficiently dried rock risks permanent damage to classic problems.
Reasoning
With 0.8mm today, 0.8mm yesterday, and 3.1mm on April 11 — plus a wetter background of 28.3mm over the past month — the rock almost certainly retains significant internal moisture despite surface appearances.
There has been no consecutive dry period since the 3.1mm on April 11; the SW aspect and moderate winds (~24–32 km/h) would assist surface drying, but with rain every 1–2 days there has been insufficient time for the deeper rock to dry out.
Fell Sandstone loses up to 80% of its compressive strength within hours of wetting, and the repeated wetting cycles over the past two weeks mean the iron-oxide cemented pockets and edges are at elevated risk of breakage.
Early spring conditions with average temperatures around 8.5°C and overnight lows near 2–3°C slow evaporation significantly; the overnight humidity readings of 83–88% further inhibit nocturnal drying.
Contributing Factors
7
Rain on April 11 (3.1mm), April 12 (0.8mm), and today April 13 (0.8mm) has prevented any sustained drying period, keeping the rock in a repeatedly wetted state.
28.3mm over the past 28 days with frequent wetting events means background moisture levels in the porous sandstone are likely elevated well beyond what surface inspection reveals.
The south-westerly aspect receives reasonable spring solar radiation and moderate winds (20–30 km/h) from a favourable direction, aiding surface evaporation during daytime hours.
Average temperatures of 8.5°C and overnight lows of 2–5°C significantly slow evaporation rates compared to summer conditions.
Overnight humidity regularly exceeds 80% (reaching 88% this morning), effectively halting drying for 10+ hours each night and risking condensation on the rock surface.
Despite canopy loss, the woodland setting still provides partial shelter that reduces effective wind speed at the rock face, slowing the wind-driven component of drying.
Today has recorded 0.8mm of precipitation, meaning the current consecutive dry day count is zero — the minimum 1–2 dry day guideline for this crag is not met.
Recommendations
3
- Wait for at least 1–2 full dry days with temperatures above 10°C and moderate wind before visiting; the current pattern of rain every 1–2 days is not allowing adequate drying.
- If you do visit, perform a thorough chalk test on holds before committing to any problem — if chalk darkens or absorbs quickly, the rock is too wet to climb safely.
- Check for active seepage from the top of the crag, particularly after the cumulative wet spell; seepage lines can keep sections damp long after surface rain has dried.
Previous Analyses
Do Not Climb
55%
1 days ago
Recent rain on April 11 (3.1mm) and today April 12 (1.2mm) means the rock has had no dry days to recover. Combined with a wet preceding week (4.7mm on Apr 1, 6.4mm on Apr 3, 3.6mm on Apr 4), internal moisture levels are likely elevated despite the crag's favourable SW aspect.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland setting, though more open since 2020 felling and Storm Arwen, still provides partial shelter that reduces wind-assisted drying at rock level compared to fully exposed crags.
- Steep pocket-rich rock is a signature feature of Kyloe — pockets trap water and take longer to dry internally than flat faces, so even when the main face feels dry, pocket holds may still be damp.
- The March 22 condition report noted that seepage from above can occur even when the main rock appears dry — always chalk-test holds before committing, especially near the top of problems.
- The crag's SW aspect is favourable for spring drying, but with today's rain and consecutive wet days, the improved air circulation post-canopy-loss is not sufficient to overcome the current moisture load.
Warnings
2
- Climbing on freshly wetted Fell Sandstone risks permanent hold breakage — Kyloe's irreplaceable pocket holds are particularly vulnerable when moisture has penetrated the rock.
- The NMC ethic of 'Love the rocks' means avoiding climbing on any sandstone that has not had adequate drying time; access to Kyloe depends on the climbing community respecting this.
Reasoning
Rain fell on April 11 (3.1mm) and today April 12 (1.2mm) with no intervening dry day, following a generally unsettled period that included 6.4mm on April 3 and 4.7mm on April 1 — the rock is almost certainly holding significant internal moisture.
Despite the SW aspect and moderate winds (34 km/h today), zero consecutive dry days means evaporative drying has not had a chance to draw out absorbed water; the improved air circulation post-canopy-loss helps but cannot compensate for ongoing wetting.
With repeated wetting events over the past two weeks and no sustained dry spell, the porous Fell Sandstone is at elevated risk of grain loosening and hold breakage, particularly in the delicate pocket features that define Kyloe's climbing.
Early spring temperatures averaging 8.4°C over the past week are modest for drying; overnight lows near 1–4°C slow evaporation, and while freeze-thaw risk is diminishing it has not fully passed with a -0.4°C low recorded on March 26.
Contributing Factors
7
3.1mm fell on April 11 and 1.2mm today (April 12) giving zero consecutive dry days and ensuring the rock surface is freshly wetted.
28.7mm over the past 28 days with multiple wetting events (Apr 1, 3, 4, 5, 9, 11, 12) means the rock has had little opportunity to dry out internally.
The SW-facing aspect and 34 km/h SW winds today provide above-average drying potential once rain stops, but this is insufficient to offset same-day rain.
A max of 11.3°C today is adequate for some evaporation but not exceptional for rapid drying, and overnight lows around 4°C will slow the process.
Tree loss since 2020 and Storm Arwen has improved air movement around the crag, aiding drying compared to older conditions, though the site remains broadly sheltered.
Kyloe's characteristic deep pockets trap and retain water longer than flat surfaces, extending internal drying time and concentrating moisture exactly where climbers pull hardest.
Average humidity around 69-70% is moderate — not ideal for rapid drying but not prohibitively high either.
Recommendations
3
- Do not climb today — the rock has had zero dry days since the most recent rain and is almost certainly holding damaging levels of internal moisture.
- Wait for at least 1-2 full dry days with temperatures above 10°C and moderate wind before visiting; check again around April 14 if the forecast dry day holds.
- On arrival, always chalk-test pocket holds and check for seepage from above before committing — if the ground at the base is damp, the rock is too wet to climb.
Do Not Climb
85%
2 days ago
Today saw 3.6mm of rain on Fell Sandstone that had only just started drying from recent wet days (6.4mm on Apr 3, 3.6mm on Apr 4, 1.6mm on Apr 5), with cumulative precipitation of 28mm over the last 28 days. The rock is almost certainly wet internally despite any surface appearance, and climbing today would risk both hold breakage and permanent crag damage.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Kyloe's steep, pocket-rich rock holds moisture in horizontal features and undercut pockets long after the main face appears dry — these are precisely the holds climbers pull on hardest.
- The post-2020 canopy loss has improved air circulation significantly, meaning the crag dries faster than older guides suggest, but the woodland still provides shelter that reduces wind effectiveness compared to fully exposed crags.
- The SW aspect is favourable for solar drying in spring afternoons, but today's rain and southerly wind will have driven moisture directly onto the main face.
- Seepage from above remains a factor at Kyloe even after canopy changes — the condition report from March 22 specifically advises checking for seepage and chalk-testing holds when in doubt.
Warnings
2
- Active rain today on porous Fell Sandstone — climbing now risks permanent hold breakage and irreversible crag damage.
- The rock surface may appear to dry quickly in wind but internal saturation persists far longer — do not be deceived by a dry-looking surface.
Reasoning
With 3.6mm of rain today on top of a pattern of intermittent wet days throughout late March and early April (28mm over 28 days), the rock is saturated or near-saturated internally, well above the critical ~1% water content at which significant strength loss begins.
There has been zero consecutive dry days — today itself brought 3.6mm — so no meaningful drying has occurred; the SW aspect and moderate wind (~31 km/h) would normally aid drying but cannot overcome active precipitation.
At current moisture levels, Fell Sandstone is likely experiencing 20-40% compressive strength loss, making hold breakage on the small pocket features at Kyloe a serious risk that could permanently damage classic problems.
Early April in Northumberland brings cool temperatures (~8°C average over the last week) and moderate humidity (~69%), which slow drying considerably compared to summer conditions; the recent overnight frost on Mar 26 (-0.4°C) following wet days also raises concern about cumulative freeze-thaw damage.
Contributing Factors
7
3.6mm of precipitation today means the rock surface is currently wet and absorbing moisture into the porous sandstone matrix.
28mm over the past 28 days with frequent light-to-moderate rain events means the rock has had little opportunity to dry thoroughly at depth.
With rain today and 0.9mm yesterday (Apr 9) followed by one dry day before today's 3.6mm, there has been no sustained drying window since the heavy rain on Apr 3-5.
The SW-facing aspect and 31 km/h southerly wind will aid surface drying once rain stops, but cannot compensate for today's active precipitation.
Average temperatures around 8°C over the last week slow evaporation significantly compared to summer conditions, extending required drying times.
Humidity at 68% today is moderate — not ideal for drying but not preventing evaporation entirely once rain ceases.
Kyloe's signature horizontal pockets and steep features trap water and seepage, prolonging drying times in exactly the holds that matter most.
Recommendations
3
- Do not climb today — the rock is actively wet from 3.6mm of rain and needs at least 48 hours of dry weather before conditions could be reassessed.
- Monitor the forecast carefully: if Apr 12-13 bring the predicted additional light rain, drying will be further delayed and you should wait until at least Apr 14-15 for any realistic drying window.
- When you do visit, use the chalk-test on pockets and check for seepage from above as recommended by local climbers — if chalk darkens on contact, the rock is too damp to climb safely.
Marginal — Assess Conditions
60%
3 days ago
After only one full dry day following 0.9mm on April 9th and a wetter spell earlier in the week (6.4mm on April 3rd, 3.6mm on April 4th, 1.6mm on April 5th), the rock has had marginal drying time. Today's conditions — dry, moderate SW wind at 28 km/h, 65% humidity, and 8.9°C — are helping, but the steep pocketed rock may still hold residual moisture in features, and rain returns heavily tomorrow.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland canopy loss since 2020/Storm Arwen means the crag now gets better air circulation and solar exposure than older guides suggest, which aids drying — but the SW-facing aspect means the crag is directly exposed to the prevailing SW wind-driven rain that fell on April 3rd–5th and 9th.
- Steep pocket-rich Fell Sandstone at Kyloe holds moisture in horizontal features and finger pockets even when the main face appears dry; a chalk-dust test on pocket interiors is essential before committing to problems.
- The March 22nd condition report confirmed the crag can shed light showers well, but the cumulative 16.3mm from April 1st–5th was a more significant wetting event than anything in that earlier dry spell.
- Seepage from above remains a concern at specific problems — the felled canopy area above the crag can channel runoff onto the top of the buttress, so check topping-out areas carefully.
Warnings
2
- Rain returns heavily tomorrow (6.5mm) with further wet days forecast — do not assume conditions will be similar or better in coming days.
- Fell Sandstone loses significant strength at very low moisture levels; even if the surface feels dry, test pockets carefully before committing to hard moves on small holds.
Reasoning
The rock received 0.9mm yesterday (April 9th) and a more significant wetting of ~16mm over April 1st–5th; while two dry days (April 6th–7th) and a warm day on April 8th (18.5°C) provided good drying after the main event, yesterday's shower has re-wetted the surface and pockets may retain moisture.
One full dry day with moderate SW wind (28 km/h), low-moderate humidity (65%), and 8.9°C on a SW-facing crag provides reasonable surface drying, but the community standard of 1–2 dry days after light rain means today sits right at the minimum threshold.
Fell Sandstone loses significant compressive strength at very low moisture levels; the iron-oxide pocket holds that define Kyloe's climbing are particularly vulnerable to breakage if residual moisture persists from the recent wet spell.
Early April in Northumberland brings cool temperatures and variable weather; the 7.6°C average over the past week means drying rates are moderate, and overnight lows near 1–3°C slow the process further.
Contributing Factors
7
0.9mm fell on April 9th, giving only one full dry day before today — right at the minimum threshold for light rain on porous sandstone.
The heavier April 1st–5th rain (16.3mm cumulative) had three good drying days (6th–8th, peaking at 18.5°C) before yesterday's shower, so deeper moisture from that event has largely dissipated.
Dry weather, 65% humidity, moderate SW wind at 28 km/h on a SW-facing crag provides active drying through the day.
Minimum of 3.1°C overnight slows evaporation during the early hours, meaning drying is concentrated in the warmer afternoon period only.
Kyloe's signature steep walls with deep pockets can trap moisture in horizontal features longer than a flat or slabby face would.
Post-felling and post-Storm Arwen, the crag receives significantly more sun and air circulation than historical guides suggest, aiding drying.
6.5mm forecast for April 11th means today is effectively the only climbing window before another prolonged wet spell — but this pressure should not override caution.
Recommendations
3
- Use a chalk-dust test on pocket interiors and horizontal features before pulling on — if chalk darkens or dampens, the hold is not safe to load.
- Focus on the steepest, most overhanging problems which shed water fastest, and avoid any lines with visible seepage from above or damp topping-out areas.
- If visiting this afternoon when the day's drying has had maximum effect, conditions will be better than morning — but be prepared to walk away if pockets feel cold or chalky holds show moisture.
Do Not Climb
55%
5 days ago
Today has 1.6mm of rain forecast, and there has been a cluster of wet days recently (6.4mm on Apr 3, 3.6mm on Apr 4, 1.6mm on Apr 5, 4.7mm on Apr 1). While Apr 6–8 were dry with warm temperatures and decent wind, today's rain resets the drying clock. The rock is likely damp or will become so during today's precipitation.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Kyloe's steep pocket-rich rock holds moisture in horizontal features and pockets even when vertical faces appear dry — finger pockets are especially slow to dry and critical for the bouldering here.
- The post-2020 canopy loss means the crag now receives better air circulation and solar radiation than older guides suggest, but the woodland floor and base of boulders can still remain damp, trapping humidity against the rock.
- Seepage from above remains a known issue at Kyloe — the March condition report specifically advises checking for seepage and chalk-testing holds before committing to problems.
- The SW aspect is favourable for spring drying when skies clear, but today's rain and the recent wet spell (13.2mm in 7 days) mean internal moisture levels in this porous Fell Sandstone are elevated.
Warnings
2
- Do not climb today — rain is falling and Fell Sandstone loses up to 50% of its compressive strength when wet, with significant weakening beginning at just 1% saturation.
- Pockets that feel surface-dry may still be internally saturated; pulling hard on wet sandstone pockets risks permanent hold breakage on irreplaceable problems.
Reasoning
The rock received 1.6mm on Apr 5, had three good drying days (Apr 6–8 with temps up to 18.5°C), but today brings another 1.6mm of rain which will re-wet surface rock and replenish moisture in pockets and horizontal features.
The three dry days from Apr 6–8 with moderate warmth and SW winds would have dried much of the surface from the Apr 3–5 rain, but today's precipitation negates that progress and the rock needs at least 24–48 hours of dry weather from today's rain to be considered safe.
With 37.6mm over the past 28 days and repeated wetting cycles, the sandstone has experienced frequent moisture ingress; internal saturation levels may be higher than surface appearance suggests, increasing the risk of hold breakage on the pocket-dependent problems.
Early April in Northumberland brings improving but unpredictable conditions; temperatures are reaching double digits which aids drying, but overnight lows near 2–4°C slow the process and humidity remains moderate to high.
Contributing Factors
6
Today's 1.6mm of rain re-wets rock surfaces and replenishes moisture in pockets, negating the beneficial drying from Apr 6–8.
13.2mm in the past 7 days across multiple rain events means the rock has been repeatedly wetted with insufficient continuous drying time.
Three consecutive dry days with temperatures up to 18.5°C and moderate SW winds would have substantially dried the rock before today's rain.
The south-westerly aspect and partial wind exposure provide above-average drying potential when dry weather returns.
Kyloe's characteristic horizontal pockets and steep features trap water and dry more slowly than vertical open faces.
Average temps around 8–13°C are adequate for drying but not exceptional; overnight lows near 2–4°C slow the process.
Recommendations
3
- Wait at least 24–48 hours after today's rain before visiting — tomorrow (Apr 10) looks dry with good wind and low humidity, so Apr 11 onward may be viable with on-site assessment.
- If visiting in coming days, chalk-test pockets and horizontal features before committing, as these are the last areas to dry at Kyloe.
- Check for seepage from above, particularly on problems beneath the top of the crag where water can percolate through from the plantation floor above.
Do Not Climb
45%
8 days ago
Recent days have seen repeated light-to-moderate rainfall (6.4mm on Apr 3, 3.6mm on Apr 4, 1.6mm on Apr 5) with only one dry day since. Despite today's dry weather with moderate winds and reasonable temperatures, the rock has not had sufficient drying time — Fell Sandstone requires at least 24–48 hours of dry weather after light rain, and considerably more after the cumulative wetting of the past few days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland setting, though more open since 2020 tree felling and Storm Arwen, still provides partial shelter that reduces wind-driven drying compared to fully exposed crags.
- Steep pocket-rich rock at Kyloe holds moisture in horizontal features and undercuts — these pockets are among the last areas to dry and are exactly where climbers pull hardest.
- The SW aspect is favourable and today's SW wind aligns well with the face, but the crag's partially sheltered position limits the benefit of the 18 km/h breeze.
- The condition report from March 22 noted the importance of checking for seepage from above — after the recent wetter spell, seepage lines from the plateau above are likely active.
Warnings
2
- Climbing on internally damp Fell Sandstone risks permanent hold breakage — the iron oxide pockets at Kyloe are irreplaceable and the NMC ethic of 'Love the rocks' must take priority.
- The surface may appear dry while the interior remains saturated — do not rely on visual inspection alone; use a chalk test on holds before pulling on.
Reasoning
The rock received 11.7mm of rain across April 3–5 (with 6.4mm on Apr 3, 3.6mm on Apr 4, and 1.6mm on Apr 5), and has had only one dry day (today, Apr 6) — internal moisture levels are very likely still elevated despite any surface drying.
Today's conditions (12°C, 69% humidity, 18 km/h SW wind) are decent for drying but represent only ~18 hours of dry weather so far; the SW aspect helps with solar gain, but one day is insufficient to dry porous Fell Sandstone after three consecutive days of rain totalling nearly 12mm.
With high porosity sandstone likely still holding significant internal moisture after the recent wet spell, climbing risks grain loosening and hold breakage — particularly on the pocket-rich features that define Kyloe's bouldering.
Early April in Northumberland brings cool average temperatures (~7°C over the past week) and variable weather that slows drying; the March 26 overnight frost to -0.4°C and recent moisture also raise cumulative freeze-thaw concerns for the season.
Contributing Factors
6
11.7mm fell across April 3–5 in three consecutive days, saturating the porous sandstone to a level that requires multiple dry days to resolve.
Only one dry day has elapsed since the last rain, far short of the 48+ hours recommended for Fell Sandstone after moderate rainfall.
Today's maximum of 12.2°C and SW aspect provide reasonable evaporative potential, though not enough to compensate for the short drying window.
Humidity at 69% is moderate and the 18 km/h SW breeze helps surface drying, but the partially sheltered woodland setting limits airflow at the crag face.
36mm over the past 28 days with frequent small precipitation events means the rock has rarely had a sustained dry spell this spring, keeping background moisture elevated.
The south-west facing aspect receives good afternoon solar radiation, which is the most favourable orientation for drying in the northern hemisphere.
Recommendations
3
- Wait at least one more full dry day (ideally until April 8 morning if April 7 remains dry) before visiting — two consecutive dry days is the minimum standard for Fell Sandstone.
- If you visit tomorrow (April 7) after a second dry day, perform a thorough chalk test on holds and check for seepage from above before committing to any problem.
- Avoid lower sections of the crag and deep pockets, which will be the last features to dry — prioritise steep, well-drained faces if conditions look promising on inspection.
Do Not Climb
40%
8 days ago
The crag has received significant rainfall over the past few days (4.7mm on Apr 1, 6.4mm on Apr 3, 3.6mm on Apr 4, and 1.3mm today), totalling over 16mm in the last week with no consecutive dry days. Despite strong winds today, the rock is almost certainly still holding internal moisture and needs at least 1–2 full dry days before conditions can be considered acceptable.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Kyloe's steep, pocket-rich rock holds moisture in horizontal features and pockets long after the main face appears dry — these are precisely the holds climbers rely on.
- The woodland setting, though more open since 2020 tree felling and Storm Arwen, still provides shelter that reduces wind-assisted drying at rock level compared to fully exposed crags.
- The SW aspect is favourable for spring afternoon sun, but early April sun angles and shortened direct exposure through remaining trees limit solar drying effectiveness.
- The condition report from March 22 noted the crag was dry and resilient to light showers, but the recent multi-day rain sequence (Apr 1–5) is far more significant than the weekend showers referenced in that report.
Warnings
2
- Do not climb today — the rock has received rain and has had no dry days to recover from 16mm of precipitation this week.
- Fell Sandstone loses significant strength at just 1% saturation; surface-dry appearance does not mean the rock is safe to climb on.
Reasoning
With 16.3mm of precipitation in the last 7 days spread across multiple events (including 6.4mm and 3.6mm on consecutive days) and 1.3mm today, the rock is very likely still saturated internally despite any surface drying from today's strong winds.
Today's very strong westerly winds (57 km/h) and low humidity (68%) will help surface drying, but the SW aspect receives only limited direct sun in early April afternoons, and the accumulated moisture from repeated rain events over the past 5 days requires at least 1–2 full dry days to clear — the drying clock has barely started.
Fell Sandstone loses up to 50% compressive strength when wet, and with repeated wetting events through March and into April the rock is vulnerable to hold breakage, particularly in the small iron-oxide pockets that define Kyloe's climbing.
Early spring in Northumberland brings cool temperatures (average 6.9°C last 7 days) and moderate humidity that slow drying considerably; overnight lows near or below freezing (1.0°C forecast tomorrow night) also raise mild freeze-thaw concerns for moisture-laden rock.
Contributing Factors
8
Over 16mm in the last 7 days across multiple events with no consecutive dry days means the rock has had no opportunity to dry out internally.
1.3mm of rain today resets the drying clock, ensuring the rock surface is freshly wetted.
Very strong 57 km/h westerly winds will accelerate surface evaporation, though the woodland setting reduces their effect at rock level.
Humidity at 68% today and forecast 69% tomorrow is moderate and supports some drying, though not exceptionally low.
Temperatures averaging only 6.9°C over the last week significantly slow evaporative drying compared to summer conditions.
Kyloe's steep pocket-rich sandstone traps water in horizontal features that are slow to drain and dry, precisely where climbers pull hardest.
Forecast overnight lows of 1.0°C tomorrow night on moisture-laden rock raise a mild freeze-thaw concern, though a single cycle is unlikely to cause major damage.
The south-westerly aspect will receive afternoon sun when available, aiding drying from tomorrow onwards.
Recommendations
3
- Wait at least until April 7 (two full dry days after today's rain) before visiting, and use the chalk test on pockets and horizontal features before committing to problems.
- Check for seepage from above — the recent multi-day rain sequence may have recharged seepage lines that were dormant during the drier mid-March period.
- If you do visit from April 7 onwards, prioritise steep and overhanging problems that shed water fastest, and avoid any holds that darken when chalked.
Do Not Climb
88%
9 days ago
Rain today (3.7mm) on top of 6.4mm yesterday and 4.7mm on April 1st means the rock is currently wet. With over 16mm in the last 7 days spread across multiple events and no consecutive dry days, the Fell Sandstone will be holding significant internal moisture despite the strong winds.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland setting, though more open since 2020 felling and Storm Arwen, still provides enough shelter to reduce the effectiveness of today's strong SW winds at rock level, slowing drying of the lower sections.
- Kyloe's signature steep pocket-rich rock is particularly prone to holding moisture in horizontal features and pockets, which can remain damp long after the face appears dry — always chalk-test pockets before pulling on them.
- The SW aspect is favourable for the forecast SW/W winds and any solar gain, which will help once the rain stops, but March/early April sun angle is still relatively low and daylight drying hours are limited.
- Seepage from above has been noted as an ongoing concern at this crag — after the recent cluster of rain events, water percolating through the sandstone above may continue to weep onto routes for a day or more.
Warnings
3
- Climbing on wet Fell Sandstone causes permanent, irreversible damage to holds — pockets at Kyloe are irreplaceable.
- Overnight temperatures near freezing on saturated rock create freeze-thaw conditions that further weaken the sandstone.
- Seepage from above may persist for 1-2 days after rain stops — check tops of problems carefully.
Reasoning
With 3.7mm today, 6.4mm yesterday, and 4.7mm on April 1st — three significant rain events in four days totalling nearly 15mm — the rock is currently wet both on the surface and internally.
Strong SW winds (35+ km/h) and the SW aspect will aid drying once rain ceases, but with no consecutive dry days accumulated and the most recent rain falling today, meaningful drying has not yet begun.
Fell Sandstone loses up to 50% of its compressive strength when wet, and the repeated wetting over recent days means the rock is at or near saturation in exposed areas — pulling on pockets risks hold breakage and permanent route damage.
Early April in Northumberland offers moderate temperatures (~8-10°C) and improving but still limited solar drying; overnight lows near freezing (1.7°C tonight) mean freeze-thaw risk exists on saturated rock.
Contributing Factors
7
3.7mm of rain today means the rock surface is currently wet and absorbing moisture.
Three rain events in four days (Apr 1: 4.7mm, Apr 3: 6.4mm, Apr 4: 3.7mm) have kept the sandstone in a persistently wet state with no opportunity to dry.
There have been no consecutive fully dry days since before April 1st, so internal moisture levels remain high.
Sustained winds of 35+ km/h from the SW will help begin drying the SW-facing crag once precipitation stops.
Temperatures around 8-10°C are adequate for some evaporation but not rapid drying, and overnight lows near freezing introduce minor freeze-thaw concern on saturated rock.
Despite reduced canopy, the remaining woodland setting limits airflow at rock level and slows drying compared to fully exposed crags.
Horizontal pockets and features trap water and take longer to dry than smooth vertical faces, extending the time before safe climbing.
Recommendations
3
- Do not climb today — the rock is wet from rain and at serious risk of hold damage; respect the NMC's 'Love the rocks' ethic.
- Wait for at least 2 full dry days with wind before visiting; the earliest realistic window opens around April 7th if forecasts hold.
- On arrival after the dry spell, chalk-test all pockets and check for seepage from above before committing to any problems.
Do Not Climb
55%
10 days ago
Rain today (2.4mm) and on April 1st (4.7mm) means the rock is currently wet or actively drying. With more rain forecast tomorrow, conditions are not suitable for climbing today and the immediate outlook is poor.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The woodland canopy loss since 2020/Storm Arwen means the crag now dries faster than older guides suggest, but the remaining shelter still reduces wind effectiveness at rock level.
- Steep pocket-rich rock is characteristic of Kyloe — pockets trap and hold moisture longer than flat faces, and should be individually checked even when the general surface feels dry.
- The SW aspect is favourable for afternoon sun exposure and aligns well with the prevailing SW winds over the past week, aiding drying between rain events.
- Seepage from above remains a known issue at Kyloe; the March 22 condition report specifically notes the importance of checking for seepage and chalk-testing holds.
Warnings
2
- Do not climb today — the rock is actively wet from today's rain on top of barely-dried April 1st rainfall.
- Pockets and horizontal features at Kyloe may retain hidden moisture even when surrounding rock appears dry — always chalk-test before pulling on small holds.
Reasoning
Rain today (2.4mm) on top of 4.7mm on April 1st means the rock is actively wet or in the very early stages of drying, with internal moisture levels almost certainly above safe thresholds.
Despite moderate SW winds (~27 km/h) and the favourable SW aspect, there has been no consecutive dry day since the April 1st rain, and today's rain resets any drying progress.
Fell Sandstone loses up to 32% compressive strength when wet, and the pocket-rich features at Kyloe concentrate force on small holds — climbing now risks permanent hold breakage.
Early spring conditions with temperatures averaging ~7°C and moderate humidity (~71%) mean drying is slower than summer; the cumulative 33mm over 28 days keeps background moisture elevated.
Contributing Factors
8
2.4mm of precipitation today means the rock surface is actively wet with no drying time accrued.
4.7mm fell on April 1st — only two days ago — meaning the rock had barely begun drying before today's rain.
33.3mm over 28 days with frequent small rain events means the rock has had limited opportunity to fully dry out internally.
The SW-facing aspect and moderate-to-strong SW/W winds (averaging 26+ km/h) will aid drying once rain stops.
Temperatures around 8–10°C are adequate for evaporation but not ideal; drying will be slower than in summer conditions.
Post-2020 tree felling and Storm Arwen canopy loss means better air circulation and sun exposure than the crag historically had.
Average humidity at 71% is neither exceptionally high nor low — not preventing drying but not strongly promoting it either.
Kyloe's steep pocket features trap water and dry more slowly than flat faces, extending the time needed before safe climbing.
Recommendations
3
- Wait for at least 2 full dry days after today's rain before visiting — the earliest realistic window opens April 6th if the forecast holds.
- If visiting on April 6th or 7th, perform chalk tests on holds and check the base of the crag for dampness before committing to climb.
- Focus on steeper overhanging problems which shed water more effectively, and avoid any lines with visible seepage from above.
Do Not Climb
60%
12 days ago
4.7mm of rain fell yesterday evening (mostly a 3.6mm burst at 20:00), and today is the first dry day with only moderate temperatures (max 6.9°C) and reasonable wind. With less than 24 hours of drying in cool conditions, the porous Fell Sandstone is very likely still holding internal moisture, especially in pockets and lower sections.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The steep, pocket-rich nature of Kyloe means water pools in horizontal features and finger pockets, which take significantly longer to dry than vertical faces.
- Post-2020 tree felling and Storm Arwen canopy loss have improved air circulation, which helps drying compared to the old sheltered woodland setting, but the crag remains broadly sheltered from full wind effect.
- The March 12th heavy rain event (12.1mm) was followed by a period of mostly dry weather with only trace precipitation, meaning background moisture levels were recovering — but yesterday's 4.7mm has re-wetted the rock.
- Seepage from above is a known issue at Kyloe; the condition report from March 22nd specifically mentions checking for seepage and chalk-testing holds, which remains critical advice today.
Warnings
2
- Climbing today risks permanent damage to irreplaceable Fell Sandstone holds — the rock has had far too little drying time since yesterday's rain.
- Pockets and horizontal features at Kyloe are particularly prone to retaining hidden moisture even when vertical surfaces appear dry.
Reasoning
4.7mm of rain fell in the evening of April 1st (concentrated around 19:00–22:00), giving less than 12 hours of drying by the time of assessment — the rock is almost certainly still wet internally despite potentially appearing dry on sun-exposed surfaces.
With today's max of only 6.9°C, westerly wind at ~21 km/h, humidity at 72%, and SW aspect receiving some afternoon sun, drying will be slow to moderate — insufficient time has elapsed for confident drying of porous Fell Sandstone after nearly 5mm of rain.
Fell Sandstone loses significant compressive strength within hours of wetting; the pocket-heavy climbing style at Kyloe places high outward force on small holds that are vulnerable to breakage when moisture-weakened.
Early April in Northumberland brings cool temperatures and limited solar intensity; while conditions are improving from winter, drying capacity remains well below summer levels.
Contributing Factors
7
4.7mm fell on April 1st, with the bulk (3.6mm) arriving in a single hour at 20:00, thoroughly wetting the rock surface and initiating capillary absorption into the sandstone.
Only ~12–18 hours have passed since rain ended, far short of the minimum 24–48 hours recommended for porous sandstone even in good conditions.
Today's maximum of 6.9°C is well below ideal drying temperatures, significantly slowing evaporation rates from the rock surface and interior.
Westerly wind at ~21 km/h provides useful air movement across the partially exposed crag, helping to remove surface moisture.
The south-west facing aspect will receive afternoon sun when cloud breaks, aiding surface drying on exposed faces.
Humidity at 72% today is moderate and allows some net evaporation, though not as effective as sub-60% conditions.
33.6mm over the past 28 days with multiple wetting events means background moisture levels in the rock have been periodically replenished throughout March.
Recommendations
3
- Wait at least until tomorrow afternoon (April 3rd) at the earliest, and ideally until April 5th–6th when a longer dry window with strong winds and lower humidity is forecast.
- If visiting in coming days, perform a thorough chalk test on holds and check the ground at the crag base — if the soil is damp, the rock is almost certainly still wet internally.
- Focus on the steepest, most overhanging problems first as these shed water fastest; avoid slab and low-angle problems, and be especially cautious of seepage lines from above.
Climbing Outlook