Is Chamonix snowsure?

The snowiest week in Chamonix is week 1 of March. There are typically 4.2 snowy days during this week with 67cm of snowfall. Check out the Chamonix Snow History graphs below.Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.

Average monthly snow in Chamonix

MonthSnow amount (week)Snow days (week)
December45cm3.2 days
January47cm3.2 days
February39cm3.5 days
March39cm3.7 days
April28cm3.8 days

Average Snow and Weather Conditions in Chamonix during September (week 4):

The average snowfall forecast during week 4 of September for Chamonix is 6 cm. There are typically 1.0 snowy days during this week. Chamonix expected weather and snow conditions during the last week of September at the middle elevation of the ski area at 2440m, based on historical averages over the last 14 years: At this time of year the normal freezing level (3277m) is far above the middle elevation of Chamonix. Expect just one day with snowfall per week in Chamonix at the end of September but rain is twice as usual as snow and in a typical year there are a couple of wet days during this week of September. Forecast model average snowfall for the week is 6cm. Temperatures generally above freezing both day and night in Chamonix during week four of September with average maximum temperature 5.3°C and minimum temperature 3.8°C at the middle elevation. Expect the sun to shine on three out of seven days. Generally light winds (average 7km/h).

Snow History: Compare Resorts

Compare Chamonix with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Chamonix and (2007 – 2022).



Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Chamonix and (2007 – 2022)


Bluebird Powder Day
(Fresh snow, mostly sunny, light wind)
Powder Day
(Fresh snow, limited sun, any wind)
Bluebird Day
(Average snow, mostly sunny, light wind)
Very windy days

The most cherished days on the mountain in Chamonix are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.

Average Snowfall in

Graph showing the average precipitation (snow/rain) in Chamonix and (2007 – 2022)


Snowfall amount
(bar chart)
Days with significant snowfall.
Days with significant rainfall.

The snowiest weeks of the year in Chamonix are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.

Average Temperature in

Graph showing the average temperature and freezing level at Chamonix and (2007 – 2022)


Average temperature
Above freezing
Below freezing
Freezing level
Dashed line

The highest and lowest temperatures averaged for each week of the year in Chamonix are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.