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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 2°C on Thu 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 decreasing (fresh winds from the NW on Fri morning, calm by Sat night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 1 | |
Latest snow reports near Sun Valley (Nagano):
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is probably falling as rain at the bottom of the ski area from Iizuna Kogen
Mon 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  | |  |  | |  |  |  |  |  |  |  | | | | |
light snow | light snow | snow shwrs | snow shwrs | some clouds | some clouds | some clouds | cloudy | cloudy | clear | heavy snow | heavy snow | mod. snow | mod. snow | snow shwrs | snow shwrs | cloudy | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
2 | 5 | — | — | — | — | — | — | — | — | 21 | 12 | 7 | 9 | 1 | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | -3 | -4 | -4 | -4 | -2 | -2 | -1 | 2 | 3 | -2 | -10 | -10 | -10 | -7 | -7 | -5 |
min °C | -2 | -6 | -5 | -6 | -4 | -3 | -2 | -1 | 1 | -1 | -8 | -10 | -10 | -10 | -9 | -7 | -7 |
-6 | -10 | -9 | -9 | -7 | -6 | -4 | -4 | -2 | -5 | -16 | -20 | -19 | -19 | -14 | -11 | -7 | |
99 | 95 | 85 | 85 | 60 | 79 | 80 | 61 | 46 | 48 | 98 | 95 | 93 | 95 | 90 | 83 | 52 | |
1550 | 850 | 750 | 900 | 550 | 1100 | 1300 | 1200 | 1600 | 1850 | 1000 | 0 | 0 | 0 | 0 | 450 | 0 | |
 | — | — | 6:46 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — |
 | 4:29 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
A light covering of new snow, mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Thu 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 decreasing (fresh winds from the NW on Fri morning, calm by Sat night).
Latest snow reports near Sun Valley (Nagano):
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is probably falling as rain at the bottom of the ski area from Iizuna Kogen
| 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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