Unterwasser Snow Report and Forecast
Snow Forecast for Unterwasser
When will there be fresh snow?
This is the Snow Forecast for Unterwasser, Switzerland for 16 days from 19 May.
Updated 19 May 2025 03:32 PDT.
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Unterwasser. | |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Unterwasser.
Forecast for today in Unterwasser
Max 66°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 66°F
Temperature at BaseTemp at Base
Mon
19
Snow unlikely
Clear sky, fair, cloudy later.
Unterwasser has no new snow forecast in the next 48 hours.
Unterwasser Snow Report
Snow report from Wildhaus (2 miles from Unterwasser)
| Upper Snow Depths | 43in |
|---|---|
| Lower Snow Depths | 8in |
| Snow Conditions | Not Known |
Unterwasser 7-Day Snow Forecast Overview
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| Mon 19 | Tue 20 | Wed 21 | Thu 22 | Fri 23 | Sat 24 | Sun 25 | |
|---|---|---|---|---|---|---|---|
| Wind | |||||||
| 7,421ft | 48°F
| 47°F
| 44°F
 | 37°F
 | 37°F
| 38°F
| 44°F
|
| 5,187ft | 56°F
| 55°F
| 52°F
| 45°F
| 45°F
| 46°F
| 52°F
|
| 2,953ft | 66°F
| 64°F
| 56°F
| 51°F
| 51°F
| 54°F
| 58°F
|
| Snow Line | varying 5,607ft | ||||||
| Max Town | 66°F | 64°F | 56°F | 51°F | 51°F | 54°F | 58°F |
| Min Town | 41°F | 49°F | 49°F | 45°F | 42°F | 40°F | 40°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.
Unterwasser Medium-Range (7-Day) Snow Forecast Detail
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.
Max 66°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 66°F
Temperature at BaseTemp at Base
Mon
19
Snow unlikely
Clear sky, fair, cloudy later.
Max 64°F
Min 49°F
Valley temperatures from an overnight low of 49°F to daytime highs around 64°F
Temperature at BaseTemp at Base
Tue
20
Snow unlikely
Cloudy early, then light rain later.
Max 56°F
Min 49°F
Valley temperatures from an overnight low of 49°F to daytime highs around 56°F
Temperature at BaseTemp at Base
Wed
21
Snow unlikely
Light rain showers first, cloudy then light rain showers, light rain later.
Max 51°F
Min 45°F
Valley temperatures from an overnight low of 45°F to daytime highs around 51°F
Temperature at BaseTemp at Base
Thu
22
Snow unlikely
Light rain, cloudy, light rain later.
Max 51°F
Min 42°F
Valley temperatures from an overnight low of 42°F to daytime highs around 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
23
New Snow
Light rain early, then clear spells later.
Snow Line from 5,607ft to 5,377ft, with rain below.
Max 54°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 54°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
24
Snow unlikely
Clear spells.
Max 58°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Sun
25
Snow unlikely
Clear sky first, cloudy then light rain, light rain showers later.
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 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.
Unterwasser Snow Forecast updated at 03:32 PDT, next update expected 09:00 PDT.
Snow Forecast near Unterwasser
| Snow Report and Forecast | 48 Hr | Mon | Tue | Wed | Thu | Fri | Sat | Sun | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Flims | 1in | 6in | |||||||
| Schwägalp | - | 4in | |||||||
| Wildhaus | - | 1in | |||||||
| Flumserberg | - | 1in |
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.