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

The graphs below show the monthly weather averages over the year.
* Data from weather station: Chamonix-Mont-Blanc, France.

Average day and night temperature

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

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Monthly precipitation

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

Monthly rainy days

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

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

TUE Oct 19
13°C | 4°C


WED Oct 20
13°C | 5°C


THU Oct 21
8°C | 1°C

Moderate rain

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

Here are some average weather facts we collected from our historical climate data:

  • 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 25 degrees Celsius (77°F).
  • The warmest month is July with an average maximum temperature of 24°C (75°F).
  • The coldest month is January with an average maximum temperature of 3°C (37°F).
  • June is the most wet month. This month should be avoided if you are not a big fan of rain.
  • February is the driest month.
  • July is the most sunny month.
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.