Unterwasser Snow Report and Forecast
Updated 12 May 2026 12:45 PDT
Snow Forecast for Unterwasser
Snow and Weather from 12 May.
For Forecast detail, see below.
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Unterwasser Snow Forecast Highlights
When will there be fresh snow in Unterwasser?
| Next Snow Expected | 12 May |
|---|---|
| Next Snow Amount | 3in |
| Next 48 Hours | 3in |
| Next 7 Days | 4in |
Forecast for today in Unterwasser
Max 44°F
Min 35°F
Valley temperatures from an overnight low of 35°F to daytime highs around 44°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Tue
12
up to 3in New Snow
Cloudy, clear sky, fair later.
Snow Line from 4,718ft to 3,054ft, with rain below.
Forecast times for Unterwasser are in Zurich (Europe/Zurich) time zone.
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| Tue 12 | Wed 13 | Thu 14 | Fri 15 | Sat 16 | Sun 17 | Mon 18 | |
|---|---|---|---|---|---|---|---|
| Wind | |||||||
| 7,421ft | 26°F
 +3in
| 34°F
 | 28°F
 +2in
| 27°F
+3in
| 26°F
 +3in
| 35°F
| 37°F
|
| 5,187ft | 34°F
+3in
| 42°F
| 36°F
| 36°F
| 34°F
+1in
| 43°F
| 45°F
 |
| 2,953ft | 44°F
| 53°F
| 46°F
 | 45°F
| 44°F
| 51°F
| 56°F
|
| Snow Line | varying 4,718ft | varying 5,679ft | varying 6,234ft | varying 5,728ft | varying 5,476ft | varying 6,588ft | varying 6,788ft |
| Max Town | 44°F | 53°F | 46°F | 45°F | 44°F | 51°F | 56°F |
| Min Town | 35°F | 28°F | 38°F | 30°F | 37°F | 32°F | 34°F |
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.
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Snow Forecast near Unterwasser
| Ski Area | 48 Hr | 7 Day | Tu | We | Th | Fr | Sa | Su | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Schwägalp | 6in | 9in | |||||||
| Flumserberg | 5in | 9in | |||||||
| Flims | 5in | 8in | |||||||
| Wildhaus | 4in | 8in | |||||||
| Laterns | 4in | 5in | |||||||
| Dunserberg | 3in | 3in | |||||||
| Gommiswald | 2in | 2in |
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.