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Unterwasser Weather Forecast - 7 to 16 days - 21st September 2026

Unterwasser Weather

ECMWF IFS
GFS

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Weather Forecast for Unterwasser (900m to 2,262m)

Weather Outlook from 21 September.

Unterwasser Forecast

See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.

Unterwasser Weather Forecast updated at 02:45 CDT, next update expected 08:00 CDT.

Long-range Snow Outlook for Unterwasser

 
Snowfall

 
Snow Line

Max 23℃
Min 5℃

Snow unlikely

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Unterwasser Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Unterwasser from OpenMeteo(ECMWF IFS)
BaseSnow and WeatherTemp
Town
Mon
21
Shwrs

Cloudy at altitude, rain showers below.

Max 18℃
Min 9℃
Tue
22
Clear

Clear sky.

Max 15℃
Min 7℃
Wed
23
Clear

Clear sky.

Max 18℃
Min 5℃
Thu
24
Mixed

Clear spells.

Max 19℃
Min 7℃
Fri
25
Clear

Clear sky.

Max 19℃
Min 6℃
Sat
26
Clear

Clear sky.

Max 23℃
Min 7℃
Sun
27
Clear

Clear sky.

Max 23℃
Min 13℃

No significant snowfall is forecast for this period.

This Snow Forecast for Unterwasser, 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 Unterwasser, 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.

Unterwasser Weather Forecast updated at 02:45 CDT, next update expected 08:00 CDT.

Current Snow

For current snow depths and skiing conditions, see our Current Snow Report for Unterwasser.

For more information about this Swiss Ski Resort, See Also Skiing and Snowboarding in Unterwasser .

Off-Piste Safety in Unterwasser

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