Condition Analysis
AI-powered assessment using site data and 14-day weather history
Ravensheugh received 9.2mm on Aug 19 and 4.7mm on Aug 20, followed by a further 2.2mm on Aug 25, and has had only one full dry day since; with its NW aspect at 400m, high ambient humidity (~81% average over the last week), and limited direct sun, the rock is unlikely to be reliably dry internally. A major rain event (29.8mm) is forecast for tomorrow, making any window today marginal at best and the coming days clearly unsuitable.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives almost no direct sun, so drying relies primarily on wind and ambient temperature — both of which have been mediocre recently (avg 12°C, avg humidity 81% over the past week).
- The 45-minute walk-in makes it especially costly to arrive and find damp rock; conditions should be confirmed with high confidence before committing.
- The recent wet spell (9.2mm on Aug 19, 4.7mm on Aug 20, 2.2mm on Aug 25) means the rock has been repeatedly re-wetted before fully drying, keeping internal moisture levels elevated.
- Easterly winds today blow directly onto the NW face, which may actually push moist air against the crag rather than aiding evaporation.
Warnings
2
- Nearly 60mm of rain is forecast over the next 5 days — Ravensheugh will be thoroughly saturated and unsuitable for climbing well into early September.
- Climbing on damp Fell Sandstone causes permanent, irreversible damage to holds and routes; the surface can feel dry while the interior remains dangerously weakened.
Reasoning
The rock received 2.2mm just yesterday (Aug 25) after a wetter period of 9.2mm and 4.7mm on Aug 19–20, with only short dry spells between — internal moisture is very likely still elevated despite the surface possibly appearing dry in places.
Only one full dry day has elapsed since the last rain, with humidity consistently above 80% and temperatures around 12–18°C on a NW-facing crag with no direct sun — this is well short of the 48–72+ hours of good drying conditions needed after the cumulative recent rainfall.
Fell Sandstone loses significant compressive strength at low saturation levels, and the repeated wetting cycles over the past week mean iron oxide holds and grain bonds are at elevated risk of failure.
Late August offers reasonable temperatures but the recent pattern of frequent rain showers and high humidity is more typical of early autumn, limiting drying potential.
Contributing Factors
6
9.2mm on Aug 19, 4.7mm on Aug 20, and 2.2mm on Aug 25 have kept the rock in a repeatedly wetted state with insufficient drying between events.
The NW-facing crag at 400m receives virtually no direct sun, removing the most effective drying mechanism and relying entirely on wind and ambient conditions.
Average humidity over the past week has been 81%, severely limiting evaporative drying potential from the rock surface.
The exposed hilltop position provides consistent wind which is the primary drying agent for this aspect, though today's easterly wind blows onto the NW face rather than across it.
Just one full dry day since the last measurable rain (2.2mm on Aug 25) is far short of the 2+ dry days minimum needed for Fell Sandstone, especially at this aspect and altitude.
29.8mm forecast for tomorrow followed by 17.7mm the next day will thoroughly saturate the rock and reset any drying progress entirely.
Recommendations
3
- Do not visit Ravensheugh today or in the coming days — the rock is likely still damp internally from recent rain and a major wet spell begins tomorrow.
- Monitor conditions after the forecast rain clears; you will need at least 3–4 consecutive dry days with low humidity before conditions become suitable at this NW-facing, high-altitude crag.
- If you are set on climbing this week, consider a south-facing, lower-altitude venue with better drying characteristics instead.
Previous Analyses
Marginal — Assess Conditions
60%
57 days ago
Three consecutive dry days with moderate temperatures and declining humidity have followed a wet spell (9.2mm on Aug 19, 4.7mm on Aug 20), which should be approaching adequate drying for this exposed NW-facing crag — but the NW aspect, 400m altitude, and high average humidity (80% over the past week) introduce enough uncertainty that a visual check on arrival is essential. Rain returns tomorrow, so today represents a narrow window that will close for several days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives minimal direct sun, meaning drying relies heavily on wind exposure rather than solar heating — the exposed position is the saving grace here.
- The 45-minute walk-in makes condition checking costly; if you arrive and find damp rock, the trip is largely wasted, so consider the base-of-crag moisture test before committing to routes.
- The recent wet period (14.3mm in the last 7 days, with 9.2mm falling on Aug 19 alone) means lower sections and crack systems may still harbour internal moisture despite surface drying.
- Rain is forecast from tomorrow (Aug 25) through Aug 29, totalling nearly 30mm — today is the last realistic climbing window for at least a week.
Warnings
2
- Rain returns tomorrow and persists through Aug 29 — today is the last realistic window for at least a week; do not be tempted to push conditions if the rock feels at all suspect.
- The surface can appear dry while the interior remains saturated on Fell Sandstone — trust the ground-moisture test over visual appearance of the rock face.
Reasoning
The last significant rain was 9.2mm on Aug 19 followed by 4.7mm on Aug 20, giving roughly 3.5 dry days by this afternoon — borderline adequate for a NW-facing crag at 400m, though the exposed wind position helps.
Moderate SW/W winds (11–17 km/h) over the past three dry days at humidity averaging 70–76% provide reasonable evaporative drying, but the NW aspect means almost no direct solar contribution, so drying is slower than at south-facing venues.
Internal moisture from the heavy Aug 19–20 rainfall may persist in deeper crack systems and lower wall sections, posing a residual risk of hold weakening even where the surface appears dry.
Mid-to-late August is generally favourable for Fell Sandstone climbing, though recent weeks have been unsettled with 39.7mm over 28 days and temperatures averaging only 12°C over the last week — below typical summer values.
Contributing Factors
6
Three full dry days since the last significant rain (9.2mm on Aug 19) meets the minimum community guideline of two dry days, though NW aspect warrants extra caution.
The NW-facing scarp receives virtually no direct sunlight, removing the most effective drying mechanism and leaving wind as the primary driver.
High wind exposure at 400m with consistent 15–20 km/h winds over the drying period significantly accelerates evaporation from the rock surface.
A total of 14.3mm fell in the past 7 days, including 9.2mm on a single day, meaning substantial water penetrated the porous sandstone.
High average humidity over the past week slows evaporation rates, though today's afternoon humidity drops to 50–55% which helps.
3mm forecast for Aug 25 followed by further rain through Aug 29 (29.7mm total) means today is the only viable window and conditions will deteriorate sharply.
Recommendations
3
- If climbing today, perform the base-of-crag moisture test on arrival: if the ground at the crag foot is damp rather than sandy-dry, do not climb.
- Focus on upper wall sections and steeper/overhanging lines which will have dried fastest; avoid lower slabs, crack interiors, and any areas with visible seepage.
- Given the 45-minute approach, set off early to maximise the afternoon drying window (lowest humidity 50% around 13:00–15:00) and be prepared to walk away if conditions are marginal.
Marginal — Assess Conditions
55%
58 days ago
Two dry days following 9.2mm and 4.7mm of rain on Aug 19–20, with moderate temperatures and decent wind, offer marginal drying for this NW-facing, high-altitude Fell Sandstone crag. The rock may be approaching climbable condition on exposed, well-drained faces, but sheltered sections and lower walls could still hold internal moisture — a careful on-site assessment is essential before committing.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives virtually no direct sun, so drying relies almost entirely on wind and ambient temperature — both have been only moderate over the last two days.
- The 45-minute approach makes a wasted trip especially costly; consider checking the base of the crag for damp ground as a proxy for internal rock moisture before gearing up.
- The crag sits on the steep scarp of Tosson Hill and is relatively exposed to westerly and south-westerly winds, which has been helpful for drying but the wind shifted to northerly on Aug 20, meaning it was blowing more directly onto the NW face and may have aided evaporation.
- Seepage lines and cracks at Ravensheugh can retain moisture long after the surface appears dry — crack-dependent routes (a signature of this crag) are the slowest to dry.
Warnings
2
- Heavy rain is forecast for Aug 27–28 (36mm total) which will fully re-saturate the rock — any window for climbing closes by midweek at the latest.
- Crack-dependent routes, a hallmark of Ravensheugh, are especially vulnerable to internal moisture and hold breakage; avoid these unless thoroughly dry.
Reasoning
The last significant rain was 9.2mm on Aug 19 and 4.7mm on Aug 20, with only a trace (0.1mm) on Aug 21; the rock has had roughly 2 full dry days but at moderate temperatures (13–17°C) and relatively high humidity (70–85%), which is borderline for full internal drying of porous Fell Sandstone at this altitude and aspect.
Wind speeds of 12–17 km/h from W/NW/S over the drying window provide useful but not exceptional evaporative assistance; the NW aspect means no meaningful solar gain, so drying has been driven by wind and ambient conditions alone — likely sufficient for surface drying but internal moisture may persist in thicker sections.
With ~14mm of rain in the 48 hours before the drying window and cumulative 21mm over the past week, there is a moderate risk that internal pore saturation remains above the threshold where hold breakage and grain loosening become a concern, particularly on crack lines and lower sections of the crag.
Mid-to-late August offers reasonable (though not peak) drying potential; temperatures have been below seasonal averages and humidity has been persistently high, limiting the effectiveness of the two dry days.
Contributing Factors
6
9.2mm on Aug 19 and 4.7mm on Aug 20 delivered nearly 14mm in two days, requiring substantial drying time for porous Fell Sandstone.
Aug 22 and today (Aug 23) have been dry with decreasing humidity (76% → 70%), allowing surface and partial internal drying.
The NW-facing aspect receives negligible direct sunlight, eliminating solar heating as a drying mechanism and leaving the crag reliant on wind and ambient evaporation.
The crag's exposed position on the Simonside scarp means sustained winds of 12–17 km/h have been moving moist air away from the rock surface, partially compensating for the lack of sun.
At 400m with average temperatures around 12°C over the past week, evaporation rates are significantly lower than at lowland crags.
Average humidity of 83% over the past seven days severely limits the moisture gradient driving evaporation from the rock.
Recommendations
3
- Touch-test the rock at various heights and in cracks before climbing — if any section feels cool and damp to the back of the hand, the route is not ready.
- Check the ground at the base of the crag: if the soil or leaf litter is still moist, assume the rock retains internal moisture and do not climb.
- Prioritise upper, more exposed wall routes over deep crack lines or lower buttresses, which will be the last to dry.
Do Not Climb
30%
59 days ago
Ravensheugh received significant rain over the past week (9.2mm on Aug 19, 4.7mm on Aug 20) and has had only one full dry day since, which is far too little drying time for this NW-facing, high-altitude Fell Sandstone crag. With humidity averaging 84% over the past week and modest temperatures, internal moisture is very likely still present despite any surface drying.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m means it receives virtually no direct sun, so drying relies almost entirely on wind and ambient temperature — both of which have been modest recently.
- The 45-minute walk-in makes a wasted trip especially costly; conditions should be verified with strong confidence before committing to the approach.
- The crag sits on an exposed scarp which helps wind-driven drying, but recent wind speeds (11–19 km/h) have been below the site's typical exposure and predominantly from directions that don't strike the NW face directly.
- Seepage from the saturated hillside above (23mm in the last 7 days) may continue to feed moisture into the rock from behind, prolonging internal dampness well beyond surface drying.
Warnings
2
- The rock surface may appear dry while still being significantly weakened internally — do not rely on visual inspection alone after only 1–2 dry days.
- The forecast shows further light rain on Aug 23, 25, 26, and heavier rain on Aug 27, which will reset drying and keep conditions unsuitable through the coming week.
Reasoning
With 9.2mm on Aug 19 and 4.7mm on Aug 20, followed by only one genuinely dry day (today, Aug 22), the rock is almost certainly still holding significant internal moisture — particularly given 84% average humidity and the NW aspect preventing solar drying.
Only ~36 hours of dry weather since the last substantial rain, with light winds (11–17 km/h) and high humidity (72–85%); for a NW-facing crag at 400m, this is far short of the minimum 48–72+ hours needed after heavy rain, and the site notes advise 1–2 extra dry days beyond the standard guideline.
Fell Sandstone loses up to 50% compressive strength when wet, and with 23mm in the past week the rock is likely still weakened internally — climbing risks hold breakage and permanent route damage.
Late August offers reasonable temperatures but the recent pattern of frequent showers with short dry intervals has kept the rock in a near-perpetually damp state, preventing the deep drying that summer conditions can otherwise provide.
Contributing Factors
6
9.2mm on Aug 19 and 4.7mm on Aug 20 represent a substantial wetting event totalling nearly 14mm in two days, requiring 48–72+ hours of good drying conditions.
Only one full dry day has elapsed since the last significant rain, well short of the 3–4 dry days this NW-facing high crag requires.
Average humidity of 84% over the past week severely limits evaporative drying, meaning even wind exposure cannot compensate fully.
The NW-facing aspect receives minimal direct sunlight, removing the most effective drying mechanism and leaving the rock reliant on wind alone.
The exposed scarp position allows wind to reach the face, providing some drying assistance — though recent wind speeds have been moderate rather than strong.
Temperatures around 12–15°C are adequate for some evaporative drying, though well below the 20°C+ that would accelerate the process significantly.
Recommendations
3
- Do not climb today — the rock is almost certainly still holding internal moisture from the 14mm of rain on Aug 19–20, and climbing risks permanent damage to holds.
- Wait for at least 3 consecutive dry days with humidity below 75% before attempting the long walk-in; check forecasts carefully as further showers are predicted.
- If you do make the approach later in the week, test the ground at the crag base — if it is damp or dark-coloured rather than sandy-dry, retreat without climbing.
Do Not Climb
88%
60 days ago
Ravensheugh received 9.2mm of rain on August 19th and a further 4.7mm on August 20th, with only one dry day elapsed (today). At 400m altitude on a NW-facing aspect with humidity averaging 83% over the past week, this is far too little drying time for Fell Sandstone — the rock will still be saturated internally despite any surface drying from today's moderate wind.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives almost no direct sun, meaning drying relies entirely on wind and ambient temperature — both of which have been below average this week.
- The 45-minute walk-in makes a wasted trip especially costly; conditions should be confirmed as genuinely dry before committing to the approach.
- Recent rainfall has been frequent and cumulative (23.2mm in the last 7 days, 45.9mm in 28 days), meaning the sandstone has had very little opportunity to fully dry out between wetting events.
- The exposed position does help with wind-assisted drying, but NW wind today blows directly onto the face, which can drive residual moisture into the rock rather than aid evaporation.
Warnings
2
- Fell Sandstone holds can break without warning when the rock is internally damp — surface dryness is not a reliable indicator of safety.
- Climbing on wet Fell Sandstone causes permanent, irreversible damage to routes at this SSSI-designated crag.
Reasoning
With 9.2mm on August 19th and 4.7mm on August 20th — totalling nearly 14mm of rain in 48 hours — and only one dry day since, the rock is almost certainly still saturated internally, well above the critical 1% moisture threshold at which significant strength loss begins.
One dry day at 11.8°C, 84% humidity, and moderate NW wind (17 km/h) is wholly insufficient for a NW-facing crag at 400m to dry after ~14mm of rain; even in ideal conditions this would need 48–72+ hours, and these conditions are far from ideal.
Fell Sandstone iron-oxide holds are extremely vulnerable when wet — at current moisture levels, compressive strength is likely reduced by 30%+ and grain loosening makes hold breakage a real risk.
Late August at 400m in Northumberland brings cool temperatures (averaging only 12.3°C this week) and high humidity, both of which substantially slow drying rates compared to summer lowland conditions.
Contributing Factors
7
9.2mm on Aug 19th and 4.7mm on Aug 20th means approximately 14mm of rain fell in the last two days, requiring at least 48–72 hours of good drying conditions for Fell Sandstone.
Just one day without rain (today) is far short of the minimum 48-hour drying window needed, especially for a NW-facing high-altitude crag.
Average humidity of 83% over the past week severely limits evaporation rates, meaning even wind-assisted drying is significantly slowed.
The NW-facing aspect receives minimal to no direct sunlight, removing the most effective drying mechanism and leaving the crag reliant on wind and temperature alone.
Temperatures averaging only 12.3°C at 400m altitude reduce the rate of evaporation considerably compared to warmer lowland crags.
The exposed hilltop position provides good wind circulation which is the primary drying mechanism for this crag, partially offsetting the lack of sun.
45.9mm over the last 28 days with frequent wetting events means the rock has had very few opportunities to fully dry out, keeping background moisture levels elevated.
Recommendations
3
- Do not climb today — the rock is almost certainly still wet internally despite any surface drying.
- Allow at least 2–3 full dry days from August 21st before considering a visit; August 23rd at the earliest, and only if humidity drops and wind persists.
- Given the 45-minute approach, check local conditions reports or contact Northumberland Mountaineering Club before making the walk-in.
Do Not Climb
95%
61 days ago
Ravensheugh is thoroughly saturated after 8.6mm on the 19th and 7.2mm today, on top of 25mm in the past week. With the NW aspect at 400m, high humidity, and further rain forecast tomorrow, the rock will remain dangerously wet for several days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives virtually no direct sun, meaning drying relies almost entirely on wind and ambient temperature — both of which have been poor this week.
- The 45-minute walk-in makes it critical to be confident of conditions before setting out; there is no quick retreat if the rock turns out to be damp.
- The crag has experienced repeated wetting cycles through August (rain on the 4th, 5th, 6th, 9th, 16th, 17th, 18th, 19th, and 20th), meaning deep pore saturation is likely even if surfaces appear to dry between events.
- The SSSI designation adds an extra ethical obligation to avoid climbing on weakened rock, as damage to these routes and the geological features is permanent and protected.
Warnings
3
- Fell Sandstone loses up to 50% of its compressive strength when wet — climbing now risks permanent hold breakage and irreversible route damage.
- The rock surface may appear dry before the interior has dried; do not trust surface appearance alone after this much rain.
- The 45-minute approach means conditions could change during the walk-in; do not commit to climbing based on conditions at the car park.
Reasoning
The rock is almost certainly fully saturated internally after 8.6mm on the 19th and 7.2mm today, with cumulative rainfall of 25mm over the past 7 days and no meaningful dry spell since August 9th.
Despite the exposed position, the NW aspect eliminates direct solar drying, and with humidity averaging 83% over the past week and temperatures around 13–14°C, evaporative drying has been negligible; the brief dry window on the 10th–15th was undone by subsequent rain.
Repeated wetting over the past two weeks will have brought the sandstone close to maximum saturation, reducing compressive strength by an estimated 30–50% and creating significant risk of hold breakage and grain loosening.
Late August at 400m in Northumberland can already bring cool, damp conditions; the current spell of sub-15°C temperatures and persistent cloud is slowing drying markedly compared to lowland summer norms.
Contributing Factors
6
8.6mm on the 19th and 7.2mm today, with 25mm total in the past week, will have fully saturated the porous Fell Sandstone.
The north-west facing aspect receives negligible direct sunlight, removing the most effective drying mechanism for rock surfaces.
At 400m with recent max temperatures only 13–16°C and high humidity, evaporative drying is extremely slow.
The exposed hilltop position provides wind that aids surface drying, though this is insufficient to overcome the current saturation level and humidity.
Rain has fallen on at least 9 of the past 17 days, preventing the rock from drying between events and driving moisture deep into pores.
1.6mm is forecast for August 21st and heavier rain (11.1mm) on August 25th, limiting the available drying window to only 2–3 days.
Recommendations
3
- Do not climb at Ravensheugh today or in the next few days; the rock is saturated and structurally compromised.
- The earliest realistic window to assess conditions on-site is August 24th, but only if the 22nd and 23rd remain dry as forecast — check updated forecasts before the long walk-in.
- Consider lower-altitude, south-facing Fell Sandstone venues (e.g. Kyloe) which will dry significantly faster than Ravensheugh in these conditions.
Do Not Climb
90%
62 days ago
Ravensheugh is currently wet and unsuitable for climbing. Rain fell today (1.3mm) and over recent days (6.9mm on Aug 17, 2.1mm on Aug 16), with further light rain forecast tomorrow — the NW-facing aspect at 400m means drying has been minimal and the rock will be saturated internally.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives virtually no direct sun, so drying relies almost entirely on wind and ambient temperature — expect significantly longer drying times than south-facing Fell Sandstone venues.
- The long 45-minute approach makes it especially costly to arrive and find damp rock; checking conditions remotely or via local reports is strongly advised before committing to the walk-in.
- The recent wet spell (6.9mm on Aug 17, 2.1mm on Aug 16, plus drizzle on Aug 18–19) has kept the rock in a near-continuously moist state with no meaningful drying window.
- At 400m altitude the crag is frequently in low cloud, which maintains near-100% humidity at the rock surface and effectively halts evaporative drying even when lower ground appears dry.
Warnings
2
- Fell Sandstone loses significant strength when wet — climbing on damp rock risks catastrophic hold breakage, serious injury, and permanent route damage.
- The rock surface may appear dry while the interior remains saturated; do not rely on visual assessment alone after only one dry day at this NW-facing high crag.
Reasoning
The rock is almost certainly saturated internally: 6.9mm fell on Aug 17, 2.1mm on Aug 16, with further light precipitation on Aug 18 and today (Aug 19), giving zero consecutive dry days and no meaningful drying window.
Despite moderate wind (~17–22 km/h), the NW aspect, 400m altitude, high humidity (83–87%), and overcast skies have prevented any significant drying; the exposed position helps but cannot compensate for continuous moisture input and lack of solar heating.
Fell Sandstone loses up to 32% compressive strength on average when wet, and with ongoing saturation the iron oxide holds are at serious risk of breakage — climbing now would risk permanent route damage.
Mid-August should offer reasonable drying potential, but the current unsettled pattern with frequent showers and cool temperatures (15°C average) is performing well below summer norms for drying.
Contributing Factors
6
Significant rain on Aug 16–17 (9.0mm combined) followed by drizzle on Aug 18–19 means the rock has had no dry window to begin meaningful drying.
The NW-facing scarp receives negligible direct sunlight, removing the single most effective drying mechanism and leaving the crag reliant on wind alone.
At 400m the crag is frequently enveloped in low cloud, maintaining near-saturation humidity at the rock surface and halting evaporation.
The exposed hilltop position receives sustained wind (~17–23 km/h from W/SW) which is the primary drying agent for this crag, partially offsetting the lack of sun.
Average humidity over the last 7 days has been 77%, with recent days at 83–87%, severely limiting the evaporative gradient needed for drying.
1.6mm is forecast for Aug 20, resetting any drying progress and extending the period before the rock can reach a safe moisture state.
Recommendations
3
- Do not climb at Ravensheugh today or tomorrow — the rock is wet internally and any climbing risks permanent hold damage on these irreplaceable Fell Sandstone routes.
- The earliest realistic window to assess conditions is Aug 22–23, after two full dry days with improving humidity; even then, check the base of the crag for moisture before committing.
- Given the 45-minute approach, consider checking UKClimbing or local forums for condition reports, or visit a lower-altitude south-facing alternative such as Kyloe-in or Back Bowden Doors first.
Do Not Climb
92%
63 days ago
Ravensheugh received rain today (3.2mm) on top of 5.1mm yesterday and 2.1mm the day before, with more rain forecast tomorrow and heavy rain (17.2mm) on the 20th. The rock is currently wet and there is no meaningful drying window in the forecast — conditions are clearly unsuitable and will remain so for several days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m receives virtually no direct sun, meaning drying relies almost entirely on wind and ambient temperature — after cumulative rain like this, expect 3+ dry days needed minimum.
- The 45-minute walk-in makes condition-checking costly; given the current and forecast rain there is a high risk of wasted effort if you go up hoping for dry rock.
- The crag sits on the steep scarp of Tosson Hill where cloud and mist are common at this altitude, and 100% cloud cover today will suppress any evaporative drying.
- Recent weeks show a pattern of intermittent showers (10.4mm in the last 7 days) that have kept the sandstone in a repeatedly re-wetted state, preventing deep drying.
Warnings
2
- Climbing on wet Fell Sandstone causes permanent, irreversible damage to holds — the iron oxide features that create Ravensheugh's distinctive climbing are especially fragile when saturated.
- The 45-minute approach in unsettled weather at 400m altitude requires appropriate hill-walking gear even if you are just checking conditions.
Reasoning
The rock is currently wet from today's 3.2mm of rain (mostly overnight), following 5.1mm yesterday and 2.1mm on the 16th — cumulative recent precipitation of over 10mm in 3 days means the sandstone is saturated or near-saturated internally.
Despite moderate westerly winds (~28 km/h today), 100% cloud cover, high humidity (81%), and the NW aspect mean drying will be negligible; the forecast shows further rain tomorrow (4.2mm) and a heavy event on the 20th (17.2mm), completely resetting any drying progress.
With the rock in a repeatedly re-wetted state and significant moisture penetration likely, climbing would risk hold breakage and permanent grain loosening on this fine-grained Fell Sandstone.
Mid-August should offer reasonable drying potential, but this unsettled spell with temperatures only 12–16°C at 400m altitude is performing well below summer averages, and repeated wetting cycles prevent the rock from reaching a safe internal moisture level.
Contributing Factors
7
3.2mm fell today (mostly overnight), directly wetting the rock surface and replenishing internal moisture.
Over 10mm has fallen in the last three days (2.1 + 5.1 + 3.2mm), keeping the sandstone in a persistently wet state.
4.2mm tomorrow and a heavy 17.2mm on the 20th will completely prevent any drying and re-saturate the rock.
The NW-facing crag receives minimal direct sunlight and today has 100% cloud cover, severely limiting evaporative drying.
Sustained westerly winds of 20–28 km/h provide some drying benefit, but this is insufficient to overcome the ongoing moisture input.
Humidity has been 81–90% over recent days, reducing the vapour pressure gradient and slowing evaporation from the rock surface.
At 400m with temperatures only 12–16°C, evaporation rates are significantly lower than at lowland crags.
Recommendations
3
- Do not visit Ravensheugh this week — the forecast shows no viable drying window until at least the 22nd, and even then conditions will be marginal at best.
- Monitor weather from the 22nd onward; if the dry day holds and is followed by another dry day, conditions might become assessable by the 23rd–24th, but the forecast currently shows more rain on the 23rd.
- Consider lower-altitude, south-facing alternatives or non-porous rock venues (e.g. whinstone crags) if you need to climb this week.
Do Not Climb
93%
64 days ago
Ravensheugh received 1.6mm yesterday and 6.8mm today, with heavy rain forecast this evening (up to 5.8mm more) and further rain every day through August 21st — the rock is wet now and will not get a chance to dry. Conditions are clearly unsuitable for climbing on this porous Fell Sandstone venue.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- The NW aspect at 400m receives virtually no direct sun, meaning drying relies almost entirely on wind and ambient temperature — allow at least 1–2 extra dry days beyond the standard 48-hour guideline.
- The 45-minute walk-in makes it especially important to confirm dry conditions before setting out; turning back from a wet crag here is a significant time investment.
- The exposed position does benefit from strong westerly winds which can partially compensate for the poor aspect, but humidity levels above 80% negate much of this advantage.
- Recent weeks have seen repeated wetting events (6.2mm on July 26, 2.8mm on July 28, 7.4mm on August 4, 2.7mm on August 5) meaning the rock's internal moisture content is likely elevated despite the brief dry spell August 10–15.
Warnings
2
- Climbing on wet Fell Sandstone causes permanent, irreversible damage to holds — the iron-oxide cemented features that define Ravensheugh's routes are especially vulnerable to grain loosening when saturated.
- The rock surface may appear to dry during brief sunny spells but internal saturation will remain dangerously high given the repeated wetting pattern — do not be deceived by surface appearance.
Reasoning
The crag received 1.6mm on August 16 and 6.8mm today (August 17), and with high humidity (83%) and further heavy rain forecast this evening, the rock is thoroughly wet both externally and internally.
The brief dry spell from August 10–15 was insufficient to fully dry the rock given the repeated wetting events throughout late July and early August, and any progress was negated by the rain on August 16–17 with more to come.
With cumulative rainfall of over 8mm in the last two days and the rock likely at high internal saturation from the wet summer pattern, climbing now risks significant hold breakage on this iron-oxide-cemented Fell Sandstone.
Although mid-summer temperatures are reasonable (14–16°C), the persistent humid and showery weather pattern with temperatures dropping to 12°C later this week provides poor drying conditions for this high, north-facing crag.
Contributing Factors
6
6.8mm recorded today with a further 5.8mm of heavy rain forecast this evening, saturating the rock surface and interior.
Rain is forecast every day from August 18–21 (totalling ~11mm), providing no drying window whatsoever.
The north-west facing aspect receives minimal direct sun, severely limiting solar-driven evaporation and extending drying times.
Humidity has been 77–90% for much of the past week and is forecast to remain above 80% through August 21, suppressing evaporative drying.
The exposed hilltop position benefits from consistent wind (14–25 km/h), which is the main drying mechanism at this venue, though high humidity limits its effectiveness.
31mm over the past 28 days across multiple rain events means the rock's internal moisture has had little chance to fully dissipate, leaving baseline saturation elevated.
Recommendations
3
- Do not visit Ravensheugh this week — the rock is wet and will remain so through at least August 21st with no meaningful drying window.
- The earliest realistic opportunity is August 23rd or later, but only if the forecast dry spell from August 22nd materialises and humidity drops significantly; check conditions carefully before the long walk-in.
- If you need to climb this week, consider non-porous alternatives such as Whin Sill venues (e.g. Crag Lough, Peel Crag) which are less vulnerable to moisture damage, though slippery surfaces remain a hazard.
Do Not Climb
70%
65 days ago
Today has seen 1.3mm of rain, breaking a 6-day dry spell, and the forecast shows further rain over the next three days (totalling ~18mm), making conditions unsuitable now and worsening through midweek. The preceding dry spell (Aug 10–15) with warm temperatures had likely dried the rock well, but today's rain and the incoming unsettled weather reset the clock.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Ravensheugh's NW aspect at 400m means it receives virtually no direct sun, so drying relies almost entirely on wind and ambient temperature — the crag's exposed position is its main drying asset.
- The 45-minute walk-in makes a wasted trip particularly costly; with rain today and more forecast tomorrow, it is not worth committing to the approach.
- The period Aug 10–15 provided excellent drying conditions (6 dry days, temps up to 28°C, humidity dropping to 56%), so the rock was likely in good condition before today's rain arrived.
- Seepage lines on the steeper walls can persist for days after moderate rain at this altitude and aspect, even when the main face appears dry.
Warnings
2
- Do not be tempted to climb on apparently dry surface rock after rain — Fell Sandstone absorbs water rapidly and loses significant strength at very low saturation levels.
- Heavy rain forecast for Aug 19 (10.8mm) will require at least 48–72 hours of dry weather afterwards before the rock is safe, particularly on this NW-facing crag.
Reasoning
Today's 1.3mm of rain on a NW-facing crag at 400m with 81% humidity will have wetted the rock surface and begun capillary absorption, ending what had been a promising dry period.
The excellent 6-day dry spell (Aug 10–15) with high temperatures and lower humidity had likely dried the rock thoroughly, but today's rain re-wets the surface and the forecast of further rain (2.7mm tomorrow, 3.4mm Tuesday, 10.8mm Wednesday) prevents any meaningful drying.
Current moisture levels from today's light rain pose modest structural risk, but the heavy rain forecast for Aug 19 (10.8mm) will saturate the rock significantly, raising the risk of hold weakening on this porous Fell Sandstone.
Mid-August temperatures are reasonable for drying (15–17°C) but not exceptional, and the incoming cooler spell (10.7°C on Aug 20) will slow post-rain drying considerably.
Contributing Factors
6
1.3mm of rain today has broken the dry spell and re-wetted the rock surface, initiating capillary absorption into the porous sandstone.
The forecast shows rain on Aug 17 (2.7mm), Aug 18 (3.4mm), and a heavy 10.8mm on Aug 19, which will thoroughly saturate the rock.
The NW-facing aspect receives minimal direct sunlight, meaning drying depends almost entirely on wind and ambient conditions.
Ravensheugh's exposed hilltop position means it benefits from sustained wind, which is the primary drying mechanism for this crag.
Humidity remains elevated (79–87%) through the rainy period, significantly reducing evaporative drying potential.
Six consecutive dry days (Aug 10–15) with temperatures up to 28°C had likely dried the rock internally before today's rain.
Recommendations
3
- Do not visit today or in the next three days — rain is forecast through Aug 19 and the rock will be saturated.
- The earliest realistic window is Aug 21, but only if Aug 20's forecast rain (1.2mm) is light and followed by the predicted dry day with good wind.
- Given the 45-minute approach, check local reports or the UKC conditions forum before committing to the walk-in once the weather clears.
Climbing Outlook