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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 Sun night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -7°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, calm by Mon night).
Sun Valley (Nagano) Weather (Days 4-6): A dusting of new snow. Freeze-thaw conditions (max 6°C on Fri night, min -6°C on Wed night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -3 |  | ||||
| Bottom Lift: | -3 | |
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 Ski Resort 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
It is snowing steadily at Gala Yuzawa. from Gala Yuzawa
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 higher elevations in the ski area from Iizuna Kogen
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  | | |  | | |  | |  | | | | |
light snow | heavy snow | light snow | light snow | snow shwrs | some clouds | some clouds | snow shwrs | snow shwrs | light snow | snow shwrs | clear | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
1 | 13 | 4 | 1 | — | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | -4 | -5 | -6 | -6 | -1 | -1 | -3 | -2 | -3 | -5 | -2 | -1 | 2 | 3 | 5 | 6 |
min °C | -3 | -5 | -5 | -6 | -7 | -4 | -3 | -4 | -4 | -4 | -6 | -5 | -1 | -1 | 3 | 4 | 5 |
-10 | -12 | -12 | -11 | -10 | -4 | -3 | -6 | -7 | -7 | -10 | -7 | -3 | -5 | 1 | 1 | 3 | |
98 | 97 | 95 | 90 | 80 | 47 | 64 | 87 | 90 | 98 | 96 | 81 | 69 | 53 | 27 | 43 | 53 | |
1450 | 750 | 700 | 650 | 0 | 900 | 1400 | 650 | 950 | 1050 | 500 | 800 | 1300 | 1400 | 2200 | 2500 | 2650 | |
 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — |
A heavy fall of snow, heaviest during Sun night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -7°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, calm by Mon night).
A dusting of new snow. Freeze-thaw conditions (max 6°C on Fri night, min -6°C on Wed night). Wind will be generally light.
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 Ski Resort 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
It is snowing steadily at Gala Yuzawa. from Gala Yuzawa
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 higher elevations in the ski area from Iizuna Kogen
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 32 cm |
| Last snowfall: | 12 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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