Chamonix weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Fair
Best time to visit: June – September
Best for skiing: December – March
What is the weather like in Chamonix in May?
In May, Chamonix is cool: daytime highs average 15 °C, and nights cool down to about 5 °C. Expect around 6 hours of sunshine a day. It rains often – on about 18 days, adding up to 161 mm. All in all, May is a so-so month for a holiday in Chamonix.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 14 h 54 min06:01 – 20:56
- UV index
- 8 · very highclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 9 km/haverage daily peak
- Cloud cover
- 64 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Paris
How the score comes together
- Temperatureweight 50 %85 %
- Sunshineweight 20 %55 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in May
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Chamonix in May: quick answers
Is Chamonix hot in May?
No. In May, Chamonix is cool: daytime highs average 15 °C and nights drop to about 5 °C.
Does it rain much in Chamonix in May?
It rains often – on about 18 days, adding up to 161 mm.
Chamonix month by month
The whole year in ChamonixAll destinations: France
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)