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The weather in Chamonix in May is very cold with temperatures between 1°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Chamonix. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Let it snow! You can expect Chamonix to be covered in white during the month of May. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Chamonix in May 2025.
If you’re planning to visit Chamonix in the near future, we highly recommend that you review the 14 day weather forecast for Chamonix before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -11° | 5 | 7 | 19 | 125 mm | Awful | Chamonix in January |
| February | -2° / -11° | 5 | 5 | 19 | 96 mm | Awful | Chamonix in February |
| March | 1° / -7° | 6 | 6 | 21 | 105 mm | Awful | Chamonix in March |
| April | 5° / -3° | 8 | 3 | 20 | 100 mm | Awful | Chamonix in April |
| May | 9° / 1° | 14 | 3 | 18 | 185 mm | Awful | Chamonix in May |
| June | 14° / 5° | 17 | 7 | 7 | 174 mm | Bad | Chamonix in June |
| July | 17° / 7° | 14 | 15 | 2 | 166 mm | Bad | Chamonix in July |
| August | 17° / 7° | 12 | 17 | 2 | 141 mm | Bad | Chamonix in August |
| September | 13° / 4° | 10 | 15 | 5 | 90 mm | Awful | Chamonix in September |
| October | 9° / 0° | 6 | 14 | 11 | 78 mm | Bad | Chamonix in October |
| November | 3° / -4° | 5 | 9 | 17 | 101 mm | Awful | Chamonix in November |
| December | -1° / -9° | 5 | 8 | 18 | 117 mm | Awful | Chamonix in December |