Chamonix 7-Day Snow Forecast

Chamonix Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 21 March 2026 01:47 NZDT

Long-Range Snow Forecast for Chamonix

Long-range (14 to 45 days) from 20 March.

For Forecast detail, see below.

Chamonix Snow Forecast Highlights

When will there be fresh snow in Chamonix?

Chamonix Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,440m)
Next Snow Expected	22 March
Next Snow Amount	6cm
Next 48 Hours	6cm
Next 7 Days	27cm
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Long-range Snow Outlook for Chamonix

Snowfall

Snow Line

Max 9℃
Min -6℃

22cm New Snow

Snow Line from 1,815m to resort level (1,030m).

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Chamonix Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Chamonix from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Fri 20	Fair at altitude, clear sky below.	Max 9℃ Min -3℃
Sat 21	Clear sky.	Max 8℃ Min -3℃
Sun 22	4cm to 8cm New Snow Snow showers. Snow Line from 1,615m to resort level (1,030m).	Max 5℃ Min -2℃
Mon 23	Clear sky.	Max 7℃ Min -6℃
Tue 24	Cloudy.	Max 8℃ Min -5℃
Wed 25	5cm to 9cm New Snow Patchy heavy snow at altitude, heavy rain showers below. Snow Line from 1,815m to resort level (1,030m).	Max 7℃ Min -3℃
Thu 26	4cm to 6cm New Snow Light snow. Snow falling to resort level (1,030m).	Max 0℃ Min -4℃

This Snow Forecast for Chamonix, France gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Chamonix, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Chamonix Snow Forecast updated at 01:47 NZDT, next update expected imminently.

Ensemble forecast for Chamonix, France at 1,040m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Forecast near Chamonix

Snow Forecasts for Ski Resorts near Chamonix
Ski Area	48 Hr	7 Day
Le Tour	3cm	31cm
Argentière	3cm	29cm
La Flégère	4cm	29cm
Chamonix Sud	8cm	28cm
Combloux	8cm	28cm
Passy Plaine Joux	7cm	28cm
Ski Pass Mont Blanc	10cm	28cm
Flaine	6cm	27cm

Snow Reliability

Chamonix typically enjoys reliable snowfall, with an average snow depth of 80-200 cm throughout the season. For the latest snow conditions, be sure to check J2Ski for up-to-date information.

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Off-Piste Safety in Chamonix

Before skiing or snowboarding off-piste in Chamonix, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.

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