Can I climb todayTomorrow: Maybe. Only the sunniest, windiest boulders from 17:00, if any. Check for seepage and wet holds first.
How to read the dial
- Dry
- Fast‑drying sectors only
- Wet
- Now
- When it dries
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Climb indoors instead
Bouldering gyms near the forest, for a wet day.
Before you go
Valle del Nalón after rain
Valle del Nalón: limestone boulders in the forest, in Asturias, Spain. The nearest other areas here are El Tranqueru (37 km), Teverga (48 km) and Cabo Negro (49 km).
Is Valle del Nalón dry today?
The answer at the top of this page comes from ECMWF's forecast and how fast limestone dries, and it's updated through the day. Nobody checks the rock in person, so touch the holds before you climb.
How long does Valle del Nalón take to dry after rain?
Valle del Nalón is limestone. It sheds rain quickly, though cracks, pockets and tufas can seep for days after heavy rain. 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 8 hours of dry weather, most of the forest about 14 hours, and shaded ones about 19 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 Valle del Nalón when the rock is wet?
Wet rock is slick, and pockets and cracks seep for days. If the holds feel greasy, come back later.