Portes du Soleil 7-Day Snow Forecast

Portes du Soleil Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

PROSubscribe to Switch Weather Model

Updated 21 September 2026 00:41 PDT

Long-Range Snow Forecast for Portes du Soleil

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

For Forecast detail, see below.

Portes du Soleil Snow Forecast Highlights

When will there be fresh snow in Portes du Soleil?

Portes du Soleil Snow Forecast Highlights - ECMWF IFS
Next Snow?
There is no snow currently in the forecast for Portes du Soleil.
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Portes du Soleil

Snowfall

Snow Line

Max 67°F
Min 43°F

Snow unlikely

Partner Offers

Portes du Soleil 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 Portes du Soleil from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Mon 21	Clear spells at altitude, cloudy below.	Max 59°F Min 45°F
Tue 22	Clear spells.	Max 60°F Min 44°F
Wed 23	Clear spells.	Max 60°F Min 45°F
Thu 24	Clear spells at altitude, cloudy below.	Max 60°F Min 45°F
Fri 25	Clear spells.	Max 61°F Min 43°F
Sat 26	Clear spells.	Max 65°F Min 47°F
Sun 27	Clear spells.	Max 67°F Min 48°F

No significant snowfall is forecast for this period.

This Snow Forecast for Portes du Soleil, Switzerland 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 Portes du Soleil, 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.

Portes du Soleil Snow Forecast updated at 00:41 PDT, next update expected 06:00 PDT.

Ensemble forecast for Portes du Soleil, Switzerland at 5,735ft

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.

Snow Reliability

Portes du Soleil typically enjoys good snow reliability, with an average snow depth of 200 cm in winter. Snowfall can vary, but the extensive snowmaking facilities ensure great conditions; check J2Ski for the latest updates.

Off-Piste Safety in Portes du Soleil

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