Chamonix 7-Day Snow Forecast

Chamonix Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 12 October 2026 12:48 AEDT

Long-Range Snow Forecast for Chamonix

Long-range (14 to 45 days) from 12 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	17 October
Next Snow Amount	3cm
Next 48 Hours	-
Next 7 Days	7cm
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Long-range Snow Outlook for Chamonix

Snowfall

Snow Line

Max 21℃
Min 4℃

7cm New Snow

Snow Line from 3,261m to 1,645m, 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
Mon 12	Clear sky.	Max 17℃ Min 4℃
Tue 13	Clear sky.	Max 18℃ Min 7℃
Wed 14	Clear sky.	Max 20℃ Min 9℃
Thu 15	Clear sky.	Max 21℃ Min 8℃
Fri 16	Clear sky.	Max 20℃ Min 8℃
Sat 17	up to 3cm New Snow Snow showers at altitude, rain showers below. Snow Line from 3,261m to 1,799m, with rain below.	Max 17℃ Min 6℃
Sun 18	up to 4cm New Snow Light snow at altitude, light rain below. Snow Line from 1,830m to 1,645m, with rain below.	Max 13℃ Min 6℃

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 trail 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 12:48 AEDT, 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
La Clusaz	-	14cm
Sainte-Foy Tarentaise	-	12cm
Argentière	-	11cm
La Rosière	-	9cm
Les Contamines	-	9cm
Ski Pass Mont Blanc	-	9cm
La Flégère	-	8cm
Chamonix Sud	-	7cm

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.