Condition Analysis
AI-powered assessment using site data and 14-day weather history
Scout Crag has had five consecutive dry days with warm temperatures and a south-facing aspect, meaning the non-porous BVS rock should be thoroughly dry and offering excellent friction. The last meaningful rain (3.3mm on Aug 9) is well behind, and today is dry — conditions are genuinely good for climbing.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can cause persistent drips onto routes for a day or more after rain, even when the rock face itself has dried — check for localised wet patches beneath overhanging vegetation.
- As a low-altitude south-facing valley crag, Scout Crag dries significantly faster than nearby mountain venues like Raven Crag or Gimmer, making it a reliable fallback option.
- The crag sits just above the valley road near the Old Dungeon Ghyll with minimal approach, so retreating in the event of an incoming shower is straightforward.
- Higher humidity days (83% today) can leave a thin film of moisture on shaded holds in the early morning — afternoon sessions will offer the best friction.
Reasoning
Five fully dry days since the last rain (3.3mm on Aug 9), with warm temperatures up to 27°C and moderate winds, mean the non-porous volcanic rock surface should be completely dry.
The south-facing aspect has received strong solar radiation through the recent dry spell, and moderate winds (13–16 km/h) have aided evaporation — more than sufficient drying time for a non-porous crag at 150m.
BVS rhyolite is non-porous and does not suffer structural weakening from moisture, so there is no hold-breakage risk from the recent wet period.
Mid-August provides long daylight hours and generally warm temperatures, making this an optimal time of year for this venue; no freeze-thaw or winter drainage concerns apply.
Contributing Factors
5
No precipitation since August 9, giving ample time for all surface moisture to evaporate from this non-porous rock.
The south-facing orientation has maximised solar drying through the recent warm spell, with temperatures reaching 27°C.
Consistent 13–16 km/h winds have aided surface evaporation without being dangerously strong.
Today's 83% humidity may leave slight dampness on shaded holds in the morning, but afternoon sun should resolve this.
Significant rain is forecast from Sunday (6.1mm) through Monday (13.7mm), which will end the current dry window.
Recommendations
3
- Climb today or over the next two days (Aug 14–16) to take advantage of the dry window before rain arrives on Sunday.
- Check beneath tree-covered sections for residual drips, particularly on the left side of the crag where vegetation overhangs.
- If climbing on Saturday (Aug 16), monitor the forecast closely as the approaching front may arrive earlier than predicted.
Previous Analyses
Likely Safe to Climb
92%
2 days ago
Scout Crag is in excellent condition today — four consecutive dry days, warm temperatures up to 27°C, and direct southern sun on a non-porous BVS face mean the rock should be thoroughly dry with superb friction. A fine summer day for this convenient valley crag.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can cause persistent drips onto upper sections for 12–24 hours after rain, even when the main rock face has dried — check the top of routes on arrival.
- As a low-altitude south-facing valley crag, Scout Crag dries significantly faster than higher Langdale venues like Raven Crag or Pavey Ark, making it a reliable fallback in unsettled spells.
- The roadside location near the Old Dungeon Ghyll means very short approach — useful for exploiting brief weather windows that wouldn't justify a mountain walk-in.
- Humidity rises sharply after 8pm today (85%+), so evening sessions may feel greasy on slab routes despite the rock being structurally dry.
Reasoning
Four fully dry days since the last trace rain (0.0mm on Aug 10–13), with warm temperatures (19–27°C) and moderate humidity, mean the rock surface and any tree-drip zones should be completely dry.
The south-facing aspect has received strong solar radiation across four dry summer days, and moderate westerly winds have aided evaporation — more than sufficient drying time for non-porous rhyolite.
Borrowdale Volcanic rhyolite is non-porous and extremely hard; there is no structural risk from the modest recent rainfall totals.
Mid-August offers long daylight hours and warm temperatures, providing an extended climbing window; this is peak season for Lake District rock climbing.
Contributing Factors
5
No precipitation since August 9, giving ample time for all surface moisture to evaporate from this non-porous rock.
Temperatures reaching 27°C on the south-facing aspect with largely clear skies through the afternoon provide excellent drying and friction conditions.
Light to moderate westerly winds (5–13 km/h) aid surface evaporation without being strong enough to cause safety concerns.
The period from late July to early August saw frequent light rain, but four dry days and warm sun have been sufficient to fully dry this quick-drying crag.
Rain returns from August 15–17, with a significant 19mm event forecast on Aug 17, which will disrupt conditions later in the week.
Recommendations
3
- Climb today or tomorrow for the best conditions — rain returns from Friday onwards and a heavy event is forecast for Sunday.
- Check for residual tree drips at the top of routes, particularly on lines directly below the canopy edge.
- Be aware that humidity climbs sharply after 8pm; aim to finish slab-dependent routes before evening for the best friction.
Likely Safe to Climb
90%
3 days ago
Scout Crag has had three consecutive dry days with warm temperatures and south-facing sun, allowing the non-porous BVS rock to dry thoroughly after the last light rain on August 9th. Today is an excellent day for climbing with dry conditions expected throughout.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can cause persistent drips onto routes for hours after rain — check for localised damp patches even when the main rock face appears dry.
- As a low-altitude roadside crag at 150m, Scout Crag dries significantly faster than higher Langdale venues like Raven Crag or Pavey Ark, making it a good fallback option.
- The south-facing aspect receives strong solar radiation through the day in summer, which is the primary driver of rapid drying on this sheltered valley crag.
- Heavier rain is forecast from August 16th onwards (16mm+); plan sessions for the earlier part of this week to catch the best window.
Reasoning
The last meaningful rain was 3.3mm on August 9th, followed by three full dry days including today's warm 26°C conditions — surface moisture on this non-porous rock will have fully evaporated.
Three days of dry weather with south-facing aspect, moderate winds, and summer temperatures up to 26°C provide more than sufficient drying time for non-porous volcanic rock.
BVS rhyolite is non-porous and does not suffer structural weakening from moisture, so there is no hold-breakage risk.
Mid-summer conditions with long daylight hours and warm temperatures are ideal; the main seasonal concern is afternoon convective showers, but none are forecast today.
Contributing Factors
6
No rain since a trace 3.3mm on August 9th gives ample drying time for non-porous rock.
Direct solar radiation on the south-facing crag throughout the day accelerates surface drying significantly.
Temperatures reaching 26°C with humidity dropping to 46% in the afternoon create excellent evaporation conditions.
Winds are light at 5–9 km/h, which provides modest drying assistance but is not a major factor given the solar heating.
The past month saw 36.7mm of rain in scattered showers, but three dry days have cleared surface moisture from this fast-drying crag.
Tree cover above the crag can cause localised drips after rain, but three dry days should have eliminated this issue.
Recommendations
3
- Climb today — conditions are dry and warm with excellent friction expected on the BVS rock.
- Check for any localised damp patches beneath the tree canopy above the crag before committing to routes in those areas.
- Consider climbing earlier in the week as heavy rain (16mm+) is forecast from August 16th which will reset conditions.
Marginal — Assess Conditions
72%
5 days ago
Scout Crag received 3mm of rain yesterday (Aug 9) and has had only one full dry day since; however, the south-facing aspect, moderate wind, and dropping humidity through this afternoon should have the non-porous BVS surface mostly dry by midday. The tree canopy above the crag may still be producing drips, so a visual check on arrival is essential.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can channel and drip residual moisture onto routes for hours after rain has stopped — check for drip lines before committing.
- As a low-altitude roadside valley crag, Scout Crag benefits from warmer valley air and good south-facing solar gain, making it one of the faster-drying venues in Langdale.
- The recent wet spell (over 21mm in the last week) means the ground and vegetation above the crag are saturated, increasing the chance of seepage even though the rock itself is non-porous.
- Being immediately above the road near the Old Dungeon Ghyll makes for a very short approach — easy to check conditions and retreat if damp.
Warnings
1
- Wet BVS rhyolite is dangerously slippery despite its excellent dry friction — do not commit to routes if the surface feels greasy or damp.
Reasoning
The last rain was 3mm on Aug 9, with today (Aug 10) being fully dry so far; surface moisture on this non-porous rhyolite should largely evaporate through the morning, though tree-drip seepage from the saturated canopy above may linger on some lines.
The south-facing aspect receives direct solar radiation from mid-morning onward, and humidity is dropping from 88% overnight to around 53% by mid-afternoon, providing solid evaporative drying conditions — surface moisture from yesterday's rain should clear within a few hours of sun hitting the rock.
BVS rhyolite is non-porous and does not suffer structural weakening when wet, so hold breakage is not a concern at this venue.
Mid-summer conditions with long daylight hours and reasonable warmth (approaching 19°C today) favour rapid drying, though the Lake District has been in a wetter-than-average spell recently with 21.5mm in the last seven days.
Contributing Factors
6
3mm fell on Aug 9 with only one dry day elapsed, meaning surface dampness and tree-drip residue may persist in sheltered spots.
The south-facing orientation ensures direct sun reaches the crag from mid-morning, accelerating surface evaporation significantly.
Humidity falls from 88% overnight to around 53% by mid-afternoon, creating good evaporative conditions for surface drying.
Tree cover above the crag can funnel residual moisture onto routes well after rain stops, especially after a wet week with saturated ground.
BVS rhyolite does not absorb water, so only surface moisture and friction loss are concerns — no structural damage risk.
21.5mm over the past seven days has left surrounding ground and vegetation thoroughly saturated, increasing ambient moisture and seepage potential.
Recommendations
3
- Wait until at least midday before climbing to allow sun and dropping humidity to dry the rock surface and reduce tree drip.
- Physically touch the rock and check for damp patches or tree-drip seepage lines before starting any route — retreat is easy given the roadside location.
- The forecast shows an excellent dry window from Aug 11–13 with warmer temperatures and southerly winds, making tomorrow or the next day a more confident choice if today looks marginal.
Marginal — Assess Conditions
55%
5 days ago
Today saw 3.1mm of rain with high humidity (86%), so the rock will be damp this evening. However, with a dry and clearing forecast tomorrow and the crag's south-facing aspect, surface moisture should evaporate through the morning — a visual check on arrival is essential before committing to climb.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can cause persistent drips onto routes for hours after rain has stopped, even when the main rock face appears dry.
- The south-facing aspect and low valley position mean the crag receives good afternoon sun, which helps surface drying significantly on clear days.
- The recent wet spell (22.2mm in the last 7 days) means the ground and vegetation above the crag are saturated, increasing the likelihood of seepage and tree-drip even on a dry day.
- Being a roadside crag at 150m in Great Langdale, conditions are easy to check on arrival — climbers can quickly assess and retreat to the pub if damp.
Warnings
2
- Today's rain means the rock is currently wet — do not climb this evening.
- Tree-drip from saturated canopy above can make individual routes wet even when the main face appears dry; check each route carefully.
Reasoning
Today's 3.1mm of rain on already-saturated ground (22.2mm in the past week, 80% average humidity) means the rock surface and surrounding vegetation are wet this evening.
Tomorrow's dry forecast (0mm), dropping humidity (72%), and the south-facing aspect should allow surface moisture to evaporate through the morning, though tree-drip from saturated canopy above may persist into the afternoon.
Rhyolite/BVS is non-porous and suffers no structural weakening from moisture — the risk is purely friction loss on damp surfaces.
Mid-summer conditions with reasonable daylight hours and temperatures around 18–19°C are adequate for drying, though the recent unsettled spell has kept humidity elevated and the surrounding ground thoroughly wet.
Contributing Factors
6
3.1mm fell today with 86% humidity, leaving the rock surface and surroundings wet.
22.2mm over the past 7 days has saturated the ground and vegetation above the crag, increasing seepage and drip risk.
No precipitation forecast for August 10th with humidity dropping to 72%, allowing surface drying through the day.
The south-facing orientation receives good solar radiation that accelerates surface evaporation on non-porous BVS rock.
Tree cover above the crag can channel persistent drips onto routes for hours after rain, particularly when the ground is already saturated.
Partial wind exposure with 10.4 km/h NW winds forecast tomorrow assists surface drying.
Recommendations
3
- Wait until at least late morning tomorrow (Aug 10) to allow the south-facing rock to dry in the sun before climbing.
- Physically touch the rock and check for tree-drip from above before committing — seepage from saturated vegetation may linger on specific lines.
- If routes feel greasy or damp on the holds, back off and consider returning on Aug 11 when a second consecutive dry day with warm temperatures (23°C) and stronger southerly winds should ensure fully dry conditions.
Do Not Climb
45%
6 days ago
Scout Crag has had only one dry day after a wet spell that delivered nearly 20mm over the past week, and today's humidity remains high at 76%. While the south-facing aspect and non-porous rock aid drying, tree cover above the crag may still be dripping, and tomorrow's forecast of 7.2mm rain will reset conditions.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag causes persistent drips onto routes even after rain has stopped, extending effective drying time beyond what the rock surface alone would need.
- As a low-altitude valley crag at 150m, Scout Crag avoids cloud-base issues but can sit in humid, still valley air that slows evaporation.
- The south-facing aspect is a significant advantage — direct afternoon sun accelerates surface drying on the compact BVS rock.
- Being roadside near the Old Dungeon Ghyll means quick access and easy retreat if conditions prove damper than expected on arrival.
Warnings
2
- Rhyolite becomes very slippery when damp — friction loss on BVS rock is sudden and significant, making falls likely on routes that feel easy when dry.
- Tree drip zones may appear dry at ground level but have active seepage on upper sections of routes.
Reasoning
The crag received 10.3mm on Aug 4, 5.8mm on Aug 5, 1.6mm on Aug 6, and 0.8mm on Aug 7, with only today (Aug 8) being fully dry — one day of drying is marginal even for non-porous rock given the volume of recent rain and persistent high humidity.
Today's south-facing aspect and moderate 15.8 km/h wind from the south provide reasonable drying, but a single dry day following a week averaging 78% humidity is insufficient to clear residual surface moisture, especially under tree-drip zones.
BVS rhyolite is non-porous and faces no structural damage risk from moisture — the concern is purely friction loss on wet or damp surfaces.
Mid-summer conditions offer the best solar angle and longest daylight hours for drying, but the recent pattern has been unusually wet and cool for August in Langdale.
Contributing Factors
7
Nearly 20mm fell in the last 7 days across multiple events, with the heaviest (10.3mm) just 4 days ago, leaving insufficient cumulative drying time.
Just a single fully dry day (today) since the last measurable rain on Aug 7, which is not enough to guarantee dry surfaces under tree cover.
Humidity has averaged 78% over the past week and remains at 76% today, slowing evaporation and keeping surfaces tacky.
The south-facing orientation maximises solar exposure in summer, significantly aiding surface drying on the non-porous volcanic rock.
Tree cover above the crag channels drips onto routes well after rain has ceased, extending the effective drying period.
7.2mm is forecast for Aug 9, which will re-wet the crag and negate any drying achieved today.
BVS rhyolite does not absorb water, so only surface moisture needs to evaporate — no internal drying delay.
Recommendations
3
- Wait until at least August 11 after the forecast rain clears and a full dry day with sun can work on the rock.
- If visiting today, visually inspect for tree drips and wet patches before committing — some sheltered sections may have dried but others will not have.
- Consider the roadside convenience: drive past and do a quick visual check before gearing up, as retreat is easy from this crag.
Do Not Climb
45%
7 days ago
Scout Crag has seen a notably wet spell with nearly 20mm over the past 7 days, including 10.3mm on August 4th and further rain on the 5th, 6th, and today (August 7th). With 0 consecutive dry days, high humidity (~79%), and moderate temperatures, the rock surface is very likely still damp — particularly under the tree canopy above the crag which prolongs dripping.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag is known to cause persistent drips after rain, and with rain on 4 of the last 4 days this effect will be pronounced — expect wet patches and seepage even where the main face looks dry.
- The south-facing aspect will help tomorrow (Aug 8th) if the forecast dry day materialises, but low sun angles early and late in the day limit drying on this valley-floor crag surrounded by high fells.
- Being a roadside crag at 150m, Scout Crag benefits from easy access — it's worth driving past to visually inspect conditions rather than committing to a session based on weather data alone.
- The recent wet period has been unusually persistent for summer in Langdale; the crag has not had a proper drying window since August 2nd.
Warnings
2
- Do not climb on visibly damp BVS rock — friction loss is severe and falls on low-altitude single-pitch trad routes can result in ground-fall injuries.
- Further rain is forecast for August 9th–10th (8.5mm combined), so any brief drying on August 8th will be reversed.
Reasoning
Rain has fallen on 4 of the last 4 days (totalling ~8.4mm including today's 0.5mm), and humidity has been consistently around 79–88%, so the rock surface is almost certainly damp with residual moisture in cracks and under the tree canopy.
Despite the south-facing aspect and partial wind exposure, the lack of any consecutive dry days and persistently high humidity (79% average over 7 days) mean meaningful drying has not occurred since the heavy rain on August 4th.
As non-porous BVS rhyolite, there is no structural risk from the wet spell — the concern is purely friction loss on damp surfaces.
Mid-summer conditions should favour quick drying, but this August has been unusually wet and cool for Langdale, with temperatures well below seasonal norms and humidity consistently elevated.
Contributing Factors
7
Nearly 20mm in the last 7 days across multiple events, with rain every day from August 4th through today, has kept the rock surface consistently wet.
There has been no uninterrupted drying window since August 2nd, preventing the surface from fully drying out between rain events.
Average humidity of 79% over the past week significantly slows evaporation and surface drying.
Tree cover above the crag is known to cause persistent dripping after rain, extending wet conditions well beyond the last rainfall.
The south-facing orientation maximises solar radiation exposure and will aid drying once a sustained dry window arrives.
Partial wind exposure with 18+ km/h westerly/SW winds today helps surface evaporation, though humidity limits the effect.
BVS rhyolite does not absorb water, so once surface moisture evaporates the rock will be immediately climbable without needing extended internal drying.
Recommendations
3
- Wait for the forecast dry day on August 8th and reassess — the south-facing aspect and moderate winds should help, but tree drip may persist into the afternoon.
- If visiting on August 8th, physically inspect the crag before climbing; pay particular attention to areas beneath the tree canopy for ongoing drips.
- The best window in the coming days looks to be August 11th–12th, which follows a drying period after the rain forecast for August 9th–10th and brings warmer temperatures with good winds.
Marginal — Assess Conditions
62%
9 days ago
Recent days have been unsettled with significant rain on August 4th (10.3mm) and 5th (5.8mm), plus light drizzle this morning; however, the south-facing aspect, moderate wind, and a dry afternoon window from midday onward should allow surface moisture to clear on exposed faces. Climbers arriving this afternoon should visually check the rock — exposed slabs are likely dry but sheltered sections and areas beneath tree cover may still be damp.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag causes persistent drips onto upper sections of routes for hours after rain — check for wet streaks before committing.
- As a low-altitude roadside crag, Scout Crag benefits from easy access and quick retreat if conditions prove worse than expected.
- The south-facing aspect catches afternoon sun well, but today's high cloud cover (70–84% through the afternoon) will reduce direct solar drying.
- Valley-bottom location means humidity can linger, especially in the mornings — afternoon sessions are markedly better for dryness in unsettled spells like this.
Warnings
2
- BVS rhyolite becomes very slippery when damp — do not trust the rough texture if there is any visible moisture on slab or friction-dependent moves.
- Tree drip from above may wet the top sections of routes even when lower rock appears dry; check carefully before committing to upper moves.
Reasoning
The rock received 10.3mm on Aug 4th and 5.8mm on Aug 5th with light drizzle continuing into this morning, so surface moisture is likely present on sheltered faces despite the non-porous nature of the BVS rock.
The south-facing aspect and moderate westerly winds (15–17 km/h) through this afternoon's dry window should evaporate surface moisture on exposed faces within a few hours, but tree drip and sheltered corners will lag significantly.
No structural risk — BVS rhyolite is non-porous and does not weaken when wet; the concern is purely friction loss on damp surfaces.
Mid-summer conditions with reasonable daylight hours and temperatures around 16°C support drying, though the current unsettled spell with high humidity (78% average over the last week) slows evaporation compared to the dry fortnight earlier in July.
Contributing Factors
6
16.1mm fell on Aug 4–5 followed by 0.8mm of drizzle today, leaving surfaces likely damp this morning.
No precipitation forecast from midday through the evening, giving 6+ hours of drying on exposed rock.
The southerly aspect maximises solar input even through partial cloud, aiding surface evaporation through the afternoon.
Humidity has averaged 78% over the past week and sits around 63–67% this afternoon, slowing evaporation compared to drier spells.
Tree cover above the crag feeds persistent drips onto route tops well after rain has stopped, keeping upper sections damp longer.
Westerly winds at 15–17 km/h provide reasonable airflow across the face, helping surface moisture evaporate.
Recommendations
3
- Visit in the afternoon (after midday) to allow maximum drying time on the south-facing rock — mornings will likely still be damp.
- Visually inspect each route for wet streaks and tree drip before climbing; avoid any sections that appear damp as friction will be significantly reduced.
- Stick to lower-grade, well-featured routes where friction loss is less critical, and carry a towel to test suspect holds.
Do Not Climb
70%
11 days ago
Scout Crag has received intermittent rain throughout today (7.3mm total) with the last showers ceasing around 13:00; while the south-facing aspect and moderate breeze offer some late-afternoon drying, humidity remains very high (80–90%) and 100% cloud cover limits solar drying. With 32mm of heavy rain forecast tomorrow, conditions are deteriorating rather than improving.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can channel drips onto routes for hours after rain stops, even when the main rock face appears dry.
- The south-facing aspect is partially negated today by persistent 100% cloud cover through most of the day, significantly reducing solar drying.
- Being a low-altitude roadside crag, Scout Crag is quick to assess — climbers could drive by and feel the rock before committing, but today's prolonged showers make surface moisture very likely.
- The recent unsettled spell (13.8mm in the last 7 days with multiple rain days) means the surrounding ground and tree canopy are saturated, prolonging drip-fed seepage onto the crag.
Warnings
2
- Heavy rain (32mm) forecast for August 5 — do not plan any climbing at Scout Crag or surrounding valley crags.
- The week ahead is very unsettled with further heavy rain on August 8–9; be prepared for limited climbing windows.
Reasoning
The crag received approximately 7.3mm of rain today spread across the morning hours, with the last measurable precipitation at 13:00; the rock surface is very likely still damp, especially under tree cover and in recesses.
A dry window from 14:00 onwards with moderate S/SW winds (12–15 km/h) and temperatures around 20°C provides some drying, but near-total cloud cover and humidity above 80% severely limit evaporation — only 4–5 hours of marginal drying conditions so far.
Rhyolite/BVS rock is non-porous and faces no structural damage risk from moisture; the concern is entirely friction loss on damp surfaces.
Mid-summer provides long daylight hours and reasonable temperatures, but the current Atlantic-driven unsettled pattern is delivering frequent rain to the western Lake District valleys.
Contributing Factors
6
7.3mm of rain fell in multiple showers through the morning, leaving rock surfaces wet into the afternoon.
Humidity has been 80–98% for most of today, severely inhibiting evaporation from rock surfaces.
100% cloud cover through most of the day blocks direct solar radiation on the south-facing crag, removing its main drying advantage.
No rain forecast from 14:00 onwards with moderate winds offers a few hours of partial drying.
32.4mm forecast for tomorrow will thoroughly soak the crag and surrounding vegetation, making conditions worse before they improve.
Tree cover above the crag holds moisture and channels drips onto routes for extended periods after rain.
Recommendations
3
- Do not climb today — the rock is likely still damp from this morning's rain and friction on wet BVS is poor; the only realistic dry window (late afternoon) provides insufficient drying time.
- Avoid the crag entirely tomorrow (Aug 5) as 32mm of heavy rain is forecast.
- The earliest realistic opportunity is August 7, which is forecast dry — but check the crag in person as tree-drip seepage may linger after the preceding wet days.
Marginal — Assess Conditions
65%
12 days ago
Light overnight and early-morning drizzle totalling ~1mm will have dampened the rock, but the south-facing aspect and a long dry afternoon window (11:00–20:00) with temperatures reaching 25°C and low humidity should dry the surface by early afternoon. However, with 6.6mm of rain forecast tomorrow and a very wet week ahead, today's afternoon offers the only realistic climbing window for several days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Tree cover above the crag can channel drips onto routes for hours after even light rain — check for persistent wet streaks on arrival, especially on the left side of the buttress.
- The south-facing aspect and low valley position mean the afternoon sun (when it breaks through) will heat the rock directly, accelerating surface drying of this non-porous BVS rock.
- Being roadside at 150m in Great Langdale means easy retreat if conditions aren't right — no multi-hour walk-in commitment.
- The recent wet spell (9.5mm in the last 7 days with intermittent showers) has kept the surrounding vegetation and tree canopy saturated, increasing the likelihood of secondary drips even after the rock face itself has dried.
Warnings
2
- Rain returns tomorrow with 6.6mm forecast, followed by several days of heavy rain — do not assume conditions will hold beyond this afternoon's window.
- Tree drips above the crag may make some routes feel wetter than expected despite the rock face itself appearing dry — test friction carefully on the first few moves.
Reasoning
Light drizzle overnight and early morning (~1mm total) will have left a thin film of surface moisture on the rock, but the non-porous BVS rhyolite will not have absorbed any water internally.
With the south-facing aspect receiving direct sun from late morning, temperatures climbing to 25°C, humidity dropping to 45%, and moderate SE winds around 14 km/h, the surface should dry within 2–3 hours of the rain stopping — likely dry by early afternoon.
No structural risk — non-porous Borrowdale Volcanic rock does not weaken when wet; the only concern is reduced friction on damp surfaces.
Mid-summer conditions with long daylight hours and warm temperatures favour rapid drying, though the current unsettled Atlantic pattern means persistent high humidity and frequent showers.
Contributing Factors
6
Approximately 1mm of light, intermittent precipitation fell between midnight and 07:00, leaving surface moisture on the rock.
From 11:00 onwards, the forecast shows zero precipitation, rising temperatures to 25°C, humidity dropping to 45%, and moderate winds — excellent drying conditions for a south-facing crag.
BVS rhyolite does not absorb water, so only surface moisture needs to evaporate, which happens quickly in warm, breezy conditions.
Saturated tree cover above the crag from the recent wet spell may channel drips onto upper sections of routes for several hours after the last rain.
Over 30mm of rain is forecast across the next 5 days, meaning today's afternoon is likely the last viable window for nearly a week.
Nearly 10mm fell in the last 7 days across multiple events, keeping the crag environment generally damp and saturated.
Recommendations
3
- Wait until early afternoon (13:00–14:00) before climbing to allow the south-facing rock to fully dry from overnight drizzle, and touch-test holds before committing to routes.
- Prioritise routes on the most exposed and sun-catching sections of the buttress, avoiding areas directly below trees where drips may persist.
- Plan to finish by early evening — light rain returns around 21:00 and a major wet spell begins tomorrow, so an early retreat is wise.
Climbing Outlook