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Unterwasser Snow Forecast - 20th March 2026

Unterwasser Snow Report and Forecast

ECMWF IFS
GFS

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Updated 21 March 2026 05:41 AEDT

Snow Forecast for Unterwasser

Snow and Weather from 20 March.

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 Expected23 March
Next Snow Amount2cm
Next 48 Hours1cm
Next 7 Days34cm

Forecast for today in Unterwasser

Max 9℃
Min -2℃

Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 9℃

Temperature at BaseTemp at Base

Fri
20

Snow unlikely

ClearFairFairClear

Clear sky, fair, clear sky later.

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)
Fri
20
Sat
21
Sun
22
Mon
23
Tue
24
Wed
25
Thu
26
Wind
2,262m
1℃
Mixed
-1℃
Cloud
+1cm
1℃
Lt Snow Shwrs
+1cm
-3℃
Light Snow
+2cm
1℃
Mixed
-1℃
Lt Snow Shwrs
+8cm
-10℃
Snow
+12cm
1,581m
5℃
Mixed
3℃
Cloud
+1cm
5℃
Lt Snow Shwrs
+1cm
2℃
Light Snow
+2cm
5℃
Mixed
3℃
Lt Snow Shwrs
+7cm
-6℃
Snow
+12cm
900m
9℃
Fair
8℃
Cloud
+1cm
7℃
Lt Snow Shwrs
+1cm
5℃
Cloud
+3cm
10℃
Mixed
9℃
Snow
+3cm
0℃
Snow
+9cm
Snow Line

varying 1,054m
to 900m

varying 1,500m
to 900m

varying 1,285m
to 900m

varying 1,869m
to 900m

900m

Max Town9℃8℃7℃5℃10℃9℃0℃
Min Town-2℃-2℃-2℃-2℃-4℃-2℃-3℃

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.

Snow Forecast near Unterwasser

Snow Forecasts for Ski Resorts near Unterwasser
Ski Area 48 Hr 7 DayFrSaSuMoTuWeTh
Flumserberg3cm 43cm
Laterns2cm 38cm
Dunserberg2cm 36cm
Flims3cm 34cm
Schwägalp2cm 31cm
Wildhaus3cm 29cm
Gommiswald-27cm

Snow Reliability

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.