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Sun Valley (Nagano) Weather (Next 3 days): The snow forecast for Sun Valley (Nagano) is: A heavy fall of snow, heaviest during Mon afternoon. Temperatures will be below freezing (max -3°C on Mon afternoon, min -10°C on Mon night). Wind will be generally light.
Sun Valley (Nagano) Weather (Days 4-6): A moderate fall of snow, heaviest on Sun morning. Temperatures will be below freezing (max -1°C on Sat morning, min -13°C on Thu night). Winds increasing (calm on Fri afternoon, strong winds from the WSW by Sun morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -8 |  | ||||
| Bottom Lift: | -7 | |
Latest snow reports near Sun Valley (Nagano):
Continuous light snow reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Snowing in Akakura Onsen. from Akakura Onsen
Moderate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Continuous light rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Snow is falling in Shiga Kogen-Yakebitaiyama. from Shiga Kogen-Yakebitaiyama
Mon 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | Saturday 10 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  |  | | | | | |  | | |  | |
mod. snow | heavy snow | light snow | snow shwrs | some clouds | cloudy | clear | snow shwrs | mod. snow | light snow | snow shwrs | clear | clear | clear | clear | clear | mod. snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
9 | 12 | 1 | 1 | — | — | — | 3 | 8 | 5 | 2 | — | — | — | — | — | 6 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -3 | -9 | -8 | -8 | -9 | -3 | -3 | -5 | -9 | -10 | -11 | -6 | -5 | -6 | -1 | -1 | -2 |
min °C | -7 | -10 | -10 | -10 | -10 | -5 | -5 | -6 | -9 | -10 | -13 | -8 | -7 | -7 | -2 | -2 | -8 |
-13 | -17 | -17 | -14 | -10 | -9 | -9 | -12 | -16 | -17 | -19 | -11 | -7 | -10 | -6 | -9 | -18 | |
95 | 94 | 80 | 86 | 62 | 50 | 48 | 77 | 93 | 90 | 90 | 64 | 63 | 50 | 40 | 53 | 92 | |
1050 | 150 | 0 | 400 | 0 | 600 | 1150 | 300 | 250 | 0 | 0 | 0 | 700 | 0 | 1050 | 1450 | 900 | |
 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | 4:43 | — | — | 4:44 | — | — | 4:45 | — | — | 4:45 | — | — | 4:46 | — | — | 4:47 | — |
A heavy fall of snow, heaviest during Mon afternoon. Temperatures will be below freezing (max -3°C on Mon afternoon, min -10°C on Mon night). Wind will be generally light.
A moderate fall of snow, heaviest on Sun morning. Temperatures will be below freezing (max -1°C on Sat morning, min -13°C on Thu night). Winds increasing (calm on Fri afternoon, strong winds from the WSW by Sun morning).
Latest snow reports near Sun Valley (Nagano):
Continuous light snow reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Snowing in Akakura Onsen. from Akakura Onsen
Moderate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Continuous light rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Snow is falling in Shiga Kogen-Yakebitaiyama. from Shiga Kogen-Yakebitaiyama
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 10 cm |
| Last snowfall: | 4 Jan 2026 |
| Snow Alerts | Create Alert |
2.7 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
1.7 | 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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