Mount Rubidoux › Best time to climb
When to climb at Mount Rubidoux
The best months for bouldering at Mount Rubidoux are January to February: the coolest, driest spell of the year, when the rock has the best friction. On average, June to October are too hot. April to May and November 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 | 24 of 31 | 17° / 5° | 107 mm | Best |
| February | 20 of 28 | 18° / 6° | 126 mm | Best |
| March | 21 of 31 | 17° / 7° | 121 mm | Good |
| April | 27 of 30 | 23° / 9° | 14 mm | Warm |
| May | 30 of 31 | 26° / 12° | 7 mm | Warm |
| June | 30 of 30 | 30° / 15° | 0 mm | Hot |
| July | 31 of 31 | 35° / 17° | 0 mm | Hot |
| August | 30 of 31 | 35° / 19° | 16 mm | Hot |
| September | 27 of 30 | 32° / 17° | 24 mm | Hot |
| October | 30 of 31 | 29° / 13° | 13 mm | Hot |
| November | 26 of 30 | 22° / 9° | 55 mm | Warm |
| December | 28 of 31 | 21° / 7° | 39 mm | Good |
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When is the best time to boulder at Mount Rubidoux?
The best months for bouldering at Mount Rubidoux are January to February: the coolest, driest spell of the year, when the rock has the best friction. On average, June to October are too hot. April to May and November are warm: climb early or late in the day.
What's the weather like at Mount Rubidoux in January?
Highs around 17 °C and lows around 5 °C, with about 7 days of 1 mm of rain or more and 107 mm in all, averaged over 2023 to 2025.
Which month is wettest at Mount Rubidoux?
March, with about 10 rainy days and 121 mm on average. Most rock dries within a day after a shower, but cracks and pockets can seep for longer.