Casteljau › Best time to climb
When to climb at Casteljau
The best months for bouldering at Casteljau are February: the coolest, driest spell of the year, when the rock has the best friction. On average July to August too hot. June and September are warm: climb early or late in the day.
Can you climb there today?Today's answer, hour by hour, and the week ahead.Month by month
| Month | Dry days | High / low | Rain | Verdict |
|---|---|---|---|---|
| January | 22 of 31 | 10° / 2° | 70 mm | Good |
| February | 21 of 28 | 12° / 3° | 102 mm | Best |
| March | 19 of 31 | 14° / 5° | 177 mm | Good |
| April | 21 of 30 | 18° / 8° | 92 mm | Good |
| May | 20 of 31 | 21° / 11° | 113 mm | Good |
| June | 23 of 30 | 27° / 16° | 65 mm | Warm |
| July | 26 of 31 | 30° / 17° | 33 mm | Hot |
| August | 27 of 31 | 31° / 18° | 34 mm | Hot |
| September | 22 of 30 | 24° / 13° | 137 mm | Warm |
| October | 19 of 31 | 20° / 10° | 267 mm | Good |
| November | 20 of 30 | 14° / 5° | 117 mm | Good |
| December | 22 of 31 | 11° / 3° | 115 mm | Good |
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When is the best time to boulder at Casteljau?
The best months for bouldering at Casteljau are February: the coolest, driest spell of the year, when the rock has the best friction. On average July to August too hot. June and September are warm: climb early or late in the day.
What's the weather like at Casteljau in February?
Highs around 12 °C and lows around 3 °C, with about 7 days of 1 mm of rain or more and 102 mm in all, averaged over 2023 to 2025.
Which month is wettest at Casteljau?
October, with about 12 rainy days and 267 mm on average. Most rock dries within a day after a shower, but cracks and pockets can seep for longer.