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World Weather & Climate Information

CLIMATE: AVERAGE MONTHLY WEATHER IN Chamonix-Mont-Blanc, 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's the best time to go to Chamonix-Mont-Blanc in France? Here are some annual weather facts we collected from our historical climate data:
  • The months May, June, July, August and September have nice weather with a good average temperature.
  • 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 don't like too much rain.
  • April is the driest month.
Do these climate conditions match with when you want to go to Chamonix-Mont-Blanc in France? Get a great hotel deal here.

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

* Data from nearest weather station: Sion, Switzerland (48.5 KM).
10 Day Weather Forecast 

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 © 2017 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 © 2017 www.weather-and-climate.com
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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 © 2017 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 © 2017 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 © 2017 www.weather-and-climate.com
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Weather Forecast for Chamonix-Mont-Blanc

Show in Fahrenheit
SAT
Sunny
12°C
2°C
SUN
Mist
1°C
-3°C
MON
Partly cloudy
1°C
-2°C

Today's forecast

10 Day Forecast 
Sunny
12°C | 2°C
5.6 mm