World Weather & Climate Information

CLIMATE AND AVERAGE MONTHLY WEATHER IN Chamonix-Mont-Blanc (Rhône-Alps), France

The climate in the valley of Chamonix 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 high, the area is snow-covered in winter. Above 3200 meters it snows in summer as well.

What is the best time of year to go to Chamonix-Mont-Blanc in France? Here are some average weather facts we collected from our historical climate data:
  • During the month of May, June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • The months have a high chance of precipitation.
  • On average, the warmest month is July.
  • On average, the coolest month is January.
  • August is the wettest month. This month should be avoided if you are not a big fan of rain.
  • April is the driest month.
Do these climate conditions match with when you want to go to Chamonix-Mont-Blanc in France? Find out where to stay here.

For more information, see the weather forecast and our average climate information (by month in graphs) in a beautiful overview below.

* Data from nearest weather station: Sion (Canton of Valais), Switzerland (48.5 KM).

Average minimum and maximum temperature over the year

The monthly mean minimum and maximum daily temperature. Show in Fahrenheit »
Average min and max temperatures in Sion, Switzerland   Copyright © 2019 www.weather-and-climate.com
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Average monthly hours of sunshine over the year

This is the monthly total of sunhours
Average monthly sunhours in Sion, Switzerland   Copyright © 2019 www.weather-and-climate.com
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Cheapest month to fly to Chamonix-Mont-Blanc

Average monthly precipitation over the year (rainfall, snow)

This is the mean monthly precipitation, including rain, snow, hail etc. Show in Inches »
Average precipitation (rain/snow) in Sion, Switzerland   Copyright © 2019 www.weather-and-climate.com
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Average humidity over the year

This is the mean monthly relative humidity
Average relative humidity in Sion, Switzerland   Copyright © 2019 www.weather-and-climate.com
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Average wind speed over the year

This is the mean monthly wind speed (meters per second)
Average wind speed in Sion, Switzerland   Copyright © 2019 www.weather-and-climate.com
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Where to stay in Chamonix-Mont-Blanc

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