Can I climb todayTomorrow: No. Rain until 16:00, and the rock stays wet after it.
How to read the dial
- Dry
- Fast‑drying sectors only
- Wet
- Now
- When it dries
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Before you go
Cromlech Boulders after rain
Cromlech Boulders: boulders in open country, in Gwynedd, United Kingdom. The nearest other areas here are Gallt yr Ogof (7 km), Parisella's Cave (31 km) and Pantymwyn (56 km).
Is Cromlech Boulders dry today?
The answer at the top of this page comes from the Met Office's forecast and how fast the rock dries, and it's updated through the day. Nobody checks the rock in person, so touch the holds before you climb.
How long does Cromlech Boulders take to dry after rain?
We don't have the Cromlech Boulders's rock type on record, so the model dries it slower than granite or limestone, to err on the wet side. These times are the model's estimates, tuned on Fontainebleau sandstone and not checked here. After a proper soaking (2 mm of rain or more), sunny, windy boulders need about 11 hours of dry weather, most of the boulders about 18 hours, and shaded ones about 25 hours. A light shower needs less. Wind, sun and dry air shorten the wait, and above about 92% humidity the model won't call the rock dry.
Can you climb at Cromlech Boulders when the rock is wet?
Wet rock is slick, and pockets and cracks seep for days. If the holds feel greasy, come back later.