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Sun Valley (Nagano) Weather (Next 3 days): The snow forecast for Sun Valley (Nagano) is: A light covering of new snow, mostly falling on Mon night. Freeze-thaw conditions (max 3°C on Mon morning, min -6°C on Mon night). Wind will be generally light.
Sun Valley (Nagano) Weather (Days 4-6): A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Thu afternoon, min -10°C on Fri morning). Winds increasing (calm on Wed night, fresh winds from the NNW by Fri morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | -2 | |
Latest snow reports near Sun Valley (Nagano):
Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | |  | |  |  |  |  | |
some clouds | some clouds | light snow | light snow | snow shwrs | clear | some clouds | clear | clear | some clouds | cloudy | some clouds | heavy snow | heavy snow | mod. snow | mod. snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | 1 | 4 | — | — | — | — | — | — | — | — | 17 | 12 | 5 | 5 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 3 | 0 | -3 | -4 | -4 | -4 | -1 | -1 | -1 | 2 | 3 | -1 | -9 | -10 | -9 |
min °C | 0 | 2 | -2 | -6 | -5 | -5 | -4 | -3 | -1 | -1 | 1 | -1 | -7 | -10 | -10 | -10 |
-2 | -2 | -6 | -11 | -9 | -5 | -7 | -6 | -3 | -4 | -2 | -4 | -14 | -20 | -19 | -18 | |
66 | 51 | 97 | 96 | 88 | 75 | 60 | 71 | 66 | 60 | 55 | 52 | 92 | 94 | 92 | 94 | |
1600 | 1900 | 1550 | 850 | 750 | 950 | 600 | 1100 | 1400 | 1250 | 1650 | 1850 | 1300 | 250 | 0 | 0 | |
 | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | — | 4:29 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — |
A light covering of new snow, mostly falling on Mon night. Freeze-thaw conditions (max 3°C on Mon morning, min -6°C on Mon night). Wind will be generally light.
A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Thu afternoon, min -10°C on Fri morning). Winds increasing (calm on Wed night, fresh winds from the NNW by Fri morning).
Latest snow reports near Sun Valley (Nagano):
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 5 Dec 2025 |
| Snow Alerts | Create Alert |
1.9 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Sun Valley (Nagano) at the specific elevation of 1510 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sun Valley (Nagano). To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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