Chamonix 7-Day Snow Forecast

Chamonix Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 11 October 2026 12:45 PDT

Long-Range Snow Forecast for Chamonix

Long-range (14 to 45 days) from 11 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 (8,005ft)
Next Snow Expected	17 October
Next Snow Amount	1in
Next 48 Hours	-
Next 7 Days	3in
Save on Ski Hire	Save up to 50%
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Long-range Snow Outlook for Chamonix

Snowfall

Snow Line

Max 72°F
Min 41°F

5in New Snow

Snow Line from 8,074ft to 5,902ft, 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
Sun 11	up to 1in New Snow Clear spells at altitude, cloudy below. Snow Line from 6,913ft to 6,155ft, with rain below.	Max 56°F Min 45°F
Mon 12	Clear sky.	Max 62°F Min 41°F
Tue 13	Clear sky.	Max 65°F Min 44°F
Wed 14	Clear sky.	Max 67°F Min 47°F
Thu 15	Clear sky.	Max 72°F Min 45°F
Fri 16	Clear sky.	Max 67°F Min 47°F
Sat 17	up to 5in New Snow Snow at altitude, rain below. Snow Line from 8,074ft to 5,902ft, with rain below.	Max 51°F Min 44°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 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 12:45 PDT, next update expected imminently.

Ensemble forecast for Chamonix, France at 3,412ft

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
Argentière	-	8in
Chamonix Sud	1in	7in
Ski Pass Mont Blanc	-	7in
La Clusaz	-	6in
Sainte-Foy Tarentaise	-	5in
La Flégère	-	4in
La Rosière	-	4in
Les Contamines	-	4in

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.