Mendip Hills · climbing crag beta

Cheddar Gorge — North Side climbing conditions.

General crag drying, rain and exposed-wind guidance for limestone climbing.

Wednesday 2 September 2026

Poor.

Rain is likely to wet the crag during the climbing window.

38/100

Forecast generated 2 September 2026 at 15:33 UTC. Weather input cached 2 September 2026 at 15:33 UTC. Weather: Open-Meteo Best Match, with Mountain Weather rock and exposure estimates. This is a build time, not a single model-run time.

Seven-day outlook

Cheddar Gorge — North Side day by day.

The headline stays short. Expand a day to compare recent rain, drying windows, surface state and the wind on the climb with open ground above.

PoorRain is likely to wet the crag during the climbing window.38/100
150 m · representative sector

Representative crag signal

38/100

Rain is likely to wet the crag during the climbing window.

Rock surface
Wet or seeping
Recent rain
0.0 mm / 24 h
Climbing-window rain
1.4 mm
Face wind / gust
15 / 25 mph
Above-crag gust
34 mph
Best drying window
No clear drying window
Greasy-rock risk
High

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 34 mph.

Wet or seeping sections are likely; choose another crag or wait for direct observations.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

PromisingDew or condensation may keep shaded rock greasy.91/100
150 m · representative sector

Representative crag signal

91/100

Dew or condensation may keep shaded rock greasy.

Rock surface
Probably dry
Recent rain
1.8 mm / 24 h
Climbing-window rain
0.0 mm
Face wind / gust
11 / 19 mph
Above-crag gust
26 mph
Best drying window
1 p.m.–2 p.m.
Greasy-rock risk
Low

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 26 mph.

The broad weather signal favours dry rock; local seepage and route-level dampness remain possible.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

UncertainRain is likely to wet the crag during the climbing window.49/100
150 m · representative sector

Representative crag signal

49/100

Rain is likely to wet the crag during the climbing window.

Rock surface
Wet or seeping
Recent rain
0.0 mm / 24 h
Climbing-window rain
0.5 mm
Face wind / gust
15 / 26 mph
Above-crag gust
37 mph
Best drying window
No clear drying window
Greasy-rock risk
High

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 37 mph.

Wet or seeping sections are likely; choose another crag or wait for direct observations.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

PromisingThe broad weather signal favours dry rock.95/100
150 m · representative sector

Representative crag signal

95/100

The broad weather signal favours dry rock.

Rock surface
Probably dry
Recent rain
0.5 mm / 24 h
Climbing-window rain
0.0 mm
Face wind / gust
5 / 10 mph
Above-crag gust
14 mph
Best drying window
1 p.m.–6 p.m.
Greasy-rock risk
Low

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 14 mph.

The broad weather signal favours dry rock; local seepage and route-level dampness remain possible.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

PossibleA small but credible thunder risk needs watching on exposed routes.66/100
150 m · representative sector

Representative crag signal

66/100

A small but credible thunder risk needs watching on exposed routes.

Rock surface
Probably dry
Recent rain
0.0 mm / 24 h
Climbing-window rain
0.0 mm
Face wind / gust
13 / 24 mph
Above-crag gust
33 mph
Best drying window
9 a.m.–3 p.m.
Greasy-rock risk
Low

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 33 mph.

The broad weather signal favours dry rock; local seepage and route-level dampness remain possible.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

PromisingRecent rain leaves some drying uncertainty.84/100
150 m · representative sector

Representative crag signal

84/100

Recent rain leaves some drying uncertainty.

Rock surface
Drying; check at the crag
Recent rain
2.1 mm / 24 h
Climbing-window rain
0.0 mm
Face wind / gust
10 / 19 mph
Above-crag gust
26 mph
Best drying window
12 p.m.–3 p.m.
Greasy-rock risk
Moderate

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 26 mph.

Drying is plausible, but confirm the rock at the crag before committing.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

PoorThe face is more sheltered, but gusts near 48 mph are possible above the crag.21/100
150 m · representative sector

Representative crag signal

21/100

The face is more sheltered, but gusts near 48 mph are possible above the crag.

Rock surface
Wet or seeping
Recent rain
0.4 mm / 24 h
Climbing-window rain
5.5 mm
Face wind / gust
21 / 35 mph
Above-crag gust
48 mph
Best drying window
No clear drying window
Greasy-rock risk
High

Experimental wind estimate: Shelter at individual holds and belays is unresolved. Strong gusts may differ substantially; summit-station validation does not establish crag-level accuracy.

Wind: The mapped crag point does not resolve the cliff face, so shelter on the climb is uncertain. Open ground above may be more exposed, with gusts around 48 mph.

Wet or seeping sections are likely; choose another crag or wait for direct observations.

Did this match the crag?

A broad sector and surface report is enough; no route-level claim is needed.

Use it as a starting signal

Limestone still needs an on-arrival check.

Climbing window: 08:00–18:00 local time. Rain is model-grid precipitation, including any snow as water equivalent; nearby crags can share it. Aspect and terrain refine wind and drying, not cliff-by-cliff rainfall or rain shadows.

Crag drying and sheltered-wind estimates are an unvalidated beta. Published summit checks are not a validation of low crags, woodland or individual belays.

The forecast combines recent and expected rain with broad drying, humidity, dew and wind signals. The climb and open ground above the crag are treated separately where the mapped face gives useful shelter context.

Representative point converted from ST477545. The gorge bends and includes varied buttresses; cliff aspects, overhangs and individual routes are unresolved. This does not cover the differently managed south side. Forecast-grid weather and representative sector geometry only. Check live access information and touch-test the rock before climbing.

Official access advice: BMC Regional Access Database. We link to the source without reproducing its access notes or restrictions. Check it before travel; no endorsement or partnership is implied.