Le Semnoz 7-Day Snow Forecast

Le Semnoz Long-Range Snow Forecast Updated today

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Updated 20 March 2026 19:41 CDT

Long-Range Snow Forecast for Le Semnoz

Long-range (14 to 45 days) from 21 March.

For Forecast detail, see below.

Le Semnoz Snow Forecast Highlights

When will there be fresh snow in Le Semnoz?

Le Semnoz Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,577m)
Next Snow Expected	22 March
Next Snow Amount	7cm
Next 48 Hours	7cm
Next 7 Days	22cm
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Long-range Snow Outlook for Le Semnoz

Snowfall

Snow Line

Max 8℃
Min -7℃

23cm New Snow

Snow falling to resort level (1,450m).

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Le Semnoz 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 Le Semnoz from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 21	Clear sky.	Max 8℃ Min -3℃
Sun 22	7cm to 8cm New Snow Light snow. Snow falling to resort level (1,450m).	Max 1℃ Min -3℃
Mon 23	Fair.	Max 6℃ Min -4℃
Tue 24	Cloudy.	Max 8℃ Min -4℃
Wed 25	2cm to 3cm New Snow Snow. Snow falling to resort level (1,450m).	Max 6℃ Min -5℃
Thu 26	9cm New Snow Heavy snow showers. Snow falling to resort level (1,450m).	Max -4℃ Min -7℃
Fri 27	3cm New Snow Light snow. Snow falling to resort level (1,450m).	Max -4℃ Min -7℃

This Snow Forecast for Le Semnoz, 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 Le Semnoz, 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.

Le Semnoz Snow Forecast updated at 19:41 CDT, next update expected 01:00 CDT.

Ensemble forecast for Le Semnoz, France at 1,450m

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.

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Snow Forecast near Le Semnoz

Snow Forecasts for Ski Resorts near Le Semnoz
Ski Area	48 Hr	7 Day
Annecy Mountains	4cm	80cm
Les Carroz	7cm	33cm
Les Saisies	7cm	31cm
Praz sur Arly	7cm	31cm
Espace Diamant	7cm	30cm
La Clusaz	2cm	26cm
Le Grand Bornand	2cm	26cm

Snow Reliability

Le Semnoz typically enjoys good snow reliability, with an average snow depth of around 150 cm during peak season. For the latest snow conditions, be sure to check J2Ski for up-to-date information.

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Off-Piste Safety in Le Semnoz

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

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