Best year time to visit Chamonix-Mont-Blanc

General weather information about Chamonix-Mont-Blanc

Average annual temperature is 2.7 °C

Absolute maximum temperature: 25.8 °C

Absolute minimum temperature: -19.3 °C

Number of sunny days: 130 days

Number of rainy days: 173 days

Number of snow days: 62 days

Look at detailed online map of Chamonix-Mont-Blanc

* Weather data for Chamonix-Mont-Blanc France is based on climate observations for 2026 year

Chamonix-Mont-Blanc air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.58.19.69.112.419.824.525.820.818.36.26.2
Average daytime temperature (°C)-2.71.21.92.27.814.216.215.815.610.10.30.7
Average temperature (°C)-6.9-3.6-2.0-1.43.89.611.411.110.45.6-3.0-2.9
Average night temperature (°C)-10.2-7.7-5.9-5.40.04.16.46.85.51.3-7.3-6.5
Absolute minimum temperature (°C)-19.3-15.2-12.2-12.0-2.70.2-2.2-2.0-1.9-6.8-18.0-14.8

Chamonix-Mont-Blanc monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.411.913.614.915.715.314.112.510.99.58.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)5.78.57.19.010.212.612.611.110.37.33.94.3
Precipitation (mm)12411249161811037811962179369304
Sunny days1421117958101217412
Rainy days309101925232118141714
Snow days147111330000095

Chamonix-Mont-Blanc - weather forecast by months

Chamonix-Mont-Blanc weather in januaryChamonix-Mont-Blanc weather in februaryChamonix-Mont-Blanc weather in marchChamonix-Mont-Blanc weather in aprilChamonix-Mont-Blanc weather in mayChamonix-Mont-Blanc weather in juneChamonix-Mont-Blanc weather in julyChamonix-Mont-Blanc weather in augustChamonix-Mont-Blanc weather in septemberChamonix-Mont-Blanc weather in octoberChamonix-Mont-Blanc weather in novemberChamonix-Mont-Blanc weather in december

Best time to visit Chamonix-Mont-Blanc:

The best time to visit Chamonix-Mont-Blanc during the most sunny months:

  • June — 12.6(h)
  • July — 12.6(h)
  • August — 11.1(h)

Months with the longest average daylight duration in Chamonix-Mont-Blanc:

  • June — 15.7(h)
  • July — 15.3(h)

The largest precipitation sum in Chamonix-Mont-Blanc is at

  • March — 249(mm)
  • November — 369(mm)
  • December — 304(mm)

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    Frequently asked questions

    When is the best time to visit Chamonix-Mont-Blanc?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Chamonix-Mont-Blanc.
    What is the weather like in Chamonix-Mont-Blanc?
    See average temperature, rainfall and daylight hours for Chamonix-Mont-Blanc by month in the table above.
    How many sunny days does Chamonix-Mont-Blanc have?
    The monthly weather statistics above show sunshine and rainfall patterns for Chamonix-Mont-Blanc throughout the year.