Millstone Edge

Climbing conditions · Peak District · Gritstone · New service · Give us feedback

Poor

31/100

Wet sandstone or gritstone in the forecast: wait until the rock is fully dry before climbing.

Inadvisable to climb while wet.Some porous rocks, including sandstone and gritstone, can be weakened by moisture. Climbing on them while wet can damage or break holds. BMC wet-rock guidance.
350 m · representative sector

Crag-wide signal

Climbing wet sandstone or gritstone is inadvisable. Wait until the rock is fully dry.

Rock surface
Wet or seeping
Recent rain
0.2 mm / 24 h
Climbing-window rain
5.2 mm
Face wind / gust
14 / 21 mph
Above-crag gust
30 mph
Best drying window
13:00–18:00
Greasy-rock risk
High

Sun and shade

About 6.0 hours of general sunshine from 08:00 until sunset (about 19:44). Local sun and shade are not resolved, so no face-specific estimate is shown.

How we estimate sun and shade

We use a digital elevation model (a 3D map of the land), the sun's position and the direction the crag faces to estimate when nearby hills or the face itself block the sun. Forecast sunshine and cloud then help estimate how much sunshine is likely. Where terrain or face-direction data are missing, we show general sunshine only.

Vegetation is not mapped in detail, and we cannot resolve small rock features, ledges or overhangs. Hills beyond the sampled 2 km can also change local shade. Sunshine does not guarantee dry or ice-free rock.

Wind, rain and daily score: 08:00–18:00 local time.

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 30 mph. A precomputed terrain-flow profile refines how the face shelter changes with wind direction.

Climbing is inadvisable until the rock is completely dry.

Did this match the crag?

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

Forecast generated 5 September 2026 at 08:43 UTC. Weather input cached 5 September 2026 at 08:16 UTC. Includes Mountain Weather rock and exposure estimates. This is a build time, not a single model-run time.

Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.

Use it as a starting signal

Gritstone still needs an on-arrival check.

Typically rough and very grippy when dry. Damp gritstone can feel greasy, while seepage, polish and softer or saturated holds still need careful checking. Broad crag-level rock context; individual sectors and routes may cross different rock, polish, lichen, superficial deposits or seepage.

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 have not yet been validated against crag-level observations. 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.

A reviewed venue point is available, but the quarry-edge sectors and their face directions are not yet resolved. Wind shelter and direct sun remain broad, while top-out exposure is retained for this trad venue. 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.