Climate in Chamonix-Mont-Blanc (Rhône-Alps), France

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Chamonix-Mont-Blanc, France   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Chamonix-Mont-Blanc, France   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Chamonix-Mont-Blanc, France   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Chamonix-Mont-Blanc, France   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for Chamonix-Mont-Blanc (Rhône-Alps)

THU   Oct 06
14°C | 5°C
SSW 8 kmph
FRI   Oct 07
14°C | 6°C
SW 8 kmph
1.0 mm
Patchy rain possible

Patchy rain possible

SAT   Oct 08
10°C | 6°C
WSW 8 kmph
2.0 mm
Patchy rain possible

Patchy rain possible

The best time of year to visit Chamonix-Mont-Blanc in France

Chamonix has a humid continental climate and the weather is greatly influenced by the height and location of the valley. The higher one goes, the colder and wetter it becomes. At the highest point of the Mont Blanc all precipitation is snow and the average temperature is at least 20 degrees Celsius (68 ° Fahrenheit) lower than in Chamonix itself. From 2500 meters (8202ft) high, the area is snow-covered in winter. Above 3200 meters (10499ft) it snows in summer as well.

During the month of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 26 degrees Celsius (79°F).

Other facts from our historical climate data:

  • Which is the warmest month in Chamonix-Mont-Blanc?
    July has an average maximum temperature of 24°C (75°F) and is the warmest month of the year.
  • Which is the coldest month in Chamonix-Mont-Blanc?
    The coldest month is January with an average maximum temperature of 3°C (37°F).
  • Which is the wettest month in Chamonix-Mont-Blanc?
    June tops the wettest month list with 130mm (5.1in) of rainfall.
  • Which is the driest month in Chamonix-Mont-Blanc?
    February is the driest month with 85mm (3.3in) of precipitation.
  • Which is the sunniest month in Chamonix-Mont-Blanc?
    July is the sunniest month with an average of 275 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.