Chamonix 7-Day Snow Forecast

Chamonix Long-Range Snow Forecast Updated today

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Updated 03 October 2026 13:49 BST

Long-Range Snow Forecast for Chamonix

Long-range (14 to 45 days) from 3 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	8 October
Next Snow Amount	3cm 1in
Next 48 Hours	- -
Next 7 Days	12cm 5in
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Long-range Snow Outlook for Chamonix

Snowfall

Snow Line

Max 20℃ 68°F
Min 0℃ 32°F

23cm 9in New Snow

Snow Line from 3,568m 11,706ft to 1,153m 3,783ft , with rain below.

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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
Sat 03	up to 1cm New Snow Light snow at altitude, light drizzle below. Snow Line from 3,538m 11,608ft to 2,661m 8,730ft , with rain below.	Max 20℃ 67°F Min 11℃ 53°F
Sun 04	up to 1cm New Snow Light snow showers at altitude, light rain showers below. Snow Line from 3,553m 11,657ft to 3,045m 9,990ft , with rain below.	Max 20℃ 68°F Min 10℃ 50°F
Mon 05	Clear sky at altitude, rain showers below.	Max 20℃ 68°F Min 10℃ 49°F
Tue 06	Light snow showers at altitude, light rain showers below.	Max 20℃ 68°F Min 7℃ 44°F
Wed 07	up to 3cm up to 1in New Snow Snow showers at altitude, rain showers below. Snow Line from 3,568m 11,706ft to 2,799m 9,183ft , with rain below.	Max 20℃ 67°F Min 8℃ 47°F
Thu 08	up to 11cm up to 4in New Snow Heavy snow showers at altitude, heavy drizzle below. Snow Line from 2,753m 9,032ft to 1,276m 4,186ft , with rain below.	Max 13℃ 55°F Min 3℃ 38°F
Fri 09	up to 7cm up to 3in New Snow Heavy snow showers at altitude, heavy rain showers below. Snow Line from 1,292m 4,239ft to 1,153m 3,783ft , with rain below.	Max 3℃ 38°F Min 0℃ 32°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 13:49 BST, 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.

France Accommodation (Apartments, Chalets, Hotels) Map

Snow Forecast near Chamonix

Snow Forecasts for Ski Resorts near Chamonix
Ski Area	48 Hr	7 Day
Ski Pass Mont Blanc	5cm 2in	47cm 19in
Argentière	1cm -	26cm 10in
Chamonix Sud	2cm 1in	25cm 10in
Avoriaz	-	19cm 7in
La Clusaz	-	18cm 7in
Le Tour	-	17cm 7in
Morzine	-	17cm 7in
Les Gets	-	15cm 6in

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.

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.