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Unterwasser Snow Forecast - 25th October 2026

Unterwasser Snow Report and Forecast

ECMWF IFS
GFS

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Updated 25 October 2026 23:42 AEDT

Snow Forecast for Unterwasser

Snow and Weather from 25 October.

For Forecast detail, see below.

Unterwasser Snow Forecast Highlights

When will there be fresh snow in Unterwasser?

Unterwasser Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,581m)
Next Snow Expected25 October
Next Snow Amount1cm
Next 48 Hours2cm
Next 7 Days2cm

Forecast for today in Unterwasser

Max 9℃
Min 4℃

Valley temperatures from an overnight low of 4℃ to daytime highs around 9℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
25

up to 11cm New Snow

Lt DrizzleShwrsLt RainDrizzle

Light drizzle first, rain showers then light rain, drizzle later.

Snow Line from 2,023m to 1,300m, with rain below.

Forecast times for Unterwasser are in Zurich (Europe/Zurich) time zone.

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Unterwasser 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Unterwasser from OpenMeteo(ECMWF IFS)
Sun
25		Mon
26		Tue
27		Wed
28		Thu
29		Fri
30		Sat
31
Wind
2,262m
0℃
Light Snow
+11cm
3℃
Fog
10℃
Clear
1℃
Light Snow
3℃
Fair
5℃
Clear
2℃
Fog
1,581m
5℃
Light Snow
+1cm
7℃
Fog
15℃
Clear
6℃
Lt Drizzle
7℃
Fair
10℃
Clear
7℃
Fog
900m
9℃
Lt Rain
12℃
Fog
19℃
Clear
10℃
Lt Drizzle
11℃
Fair
13℃
Clear
11℃
Mixed
Snow Line

varying 2,023m
to 1,300m

1,500m

varying 2,054m
to 1,915m

Max Town9℃12℃19℃10℃11℃13℃11℃
Min Town4℃4℃9℃7℃4℃2℃1℃

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

Switzerland Accommodation (Apartments, Chalets, Hotels) Map

 

Snow Forecast near Unterwasser

Snow Forecasts for Ski Resorts near Unterwasser
Ski Area 48 Hr 7 DaySuMoTuWeThFrSa
Schwägalp13cm 15cm
Wildhaus11cm 14cm
Flumserberg9cm 12cm
Flims10cm 11cm
Laterns3cm 3cm

How reliable is the snow in Unterwasser?

Unterwasser typically enjoys reliable snow conditions, with an average snow depth of 50-100 cm throughout the season. For the latest updates on snowfall and conditions, check J2Ski for accurate and timely information.

Understanding and predicting Snow Conditions in Unterwasser

Here are our tips for making the most of a trip to Unterwasser, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Unterwasser, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Unterwasser is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Unterwasser will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Unterwasser for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.