Chamonix 7-Day Snow Forecast

Chamonix Long-Range Snow Forecast Updated today

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Updated 23 October 2026 20:45 BST

Long-Range Snow Forecast for Chamonix

Long-range (14 to 45 days) from 23 October.

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	23 October
Next Snow Amount	10cm 4in
Next 48 Hours	25cm 10in
Next 7 Days	25cm 10in
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Long-range Snow Outlook for Chamonix

Snowfall

Snow Line

Max 20℃ 67°F
Min -1℃ 30°F

39cm 15in New Snow

Snow Line from 2,307m 7,569ft to resort level ( 1,030m 3,379ft ).

Powder Alert!

Powder Alarm issued 23 October 2026 21:44 BST

Powder Possible :- 25cm 10in of Fresh Snow is forecast for Chamonix over the next 2 days.

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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 23	up to 10cm up to 4in New Snow Light snow at altitude, light drizzle below. Snow Line from 2,107m 6,913ft to 1,168m 3,832ft , with rain below.	Max 9℃ 47°F Min 1℃ 33°F
Sat 24	up to 10cm up to 4in New Snow Heavy snow showers at altitude, rain showers below. Snow Line from 1,415m 4,642ft to resort level ( 1,030m 3,379ft ).	Max 4℃ 39°F Min 1℃ 33°F
Sun 25	up to 18cm up to 7in New Snow Light snow at altitude, light drizzle below. Snow Line from 2,307m 7,569ft to 1,261m 4,137ft , with rain below.	Max 10℃ 50°F Min 3℃ 37°F
Mon 26	Fair.	Max 14℃ 58°F Min -1℃ 30°F
Tue 27	Clear sky.	Max 20℃ 67°F Min 6℃ 43°F
Wed 28	Clear sky at altitude, fair below.	Max 15℃ 60°F Min 5℃ 41°F
Thu 29	Clear sky at altitude, fair below.	Max 14℃ 57°F Min 3℃ 38°F

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 20:45 BST, next update expected 23:00 BST.

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.

France Accommodation (Apartments, Chalets, Hotels) Map

Snow Forecast near Chamonix

Snow Forecasts for Ski Resorts near Chamonix
Ski Area	48 Hr	7 Day
Chamonix Sud	39cm 15in	39cm 15in
Argentière	35cm 14in	35cm 14in
La Rosière	35cm 14in	35cm 14in
Ski Pass Mont Blanc	35cm 14in	35cm 14in
La Clusaz	33cm 13in	33cm 13in
Les Contamines	33cm 13in	33cm 13in
Sainte-Foy Tarentaise	32cm 13in	32cm 13in
Megève	30cm 12in	30cm 12in

How reliable is the snow in Chamonix?

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.

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.