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Japan Weekly Snow Roundup #298
Weekly Snow News for Japan, updated 21 January 2026: Japan leads global snowfall again, with 1m (40") in 72 hours on Hokkaido and heavy, cold powder spreading into Honshu.
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Sun Valley (Nagano) at 1510 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 22 Jan 2026
Now
Thu 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  |  |  | |  |  | | |  | | | |
light snow | snow shwrs | some clouds | cloudy | cloudy | light snow | heavy snow | heavy snow | mod. snow | mod. snow | mod. snow | snow shwrs | cloudy | cloudy | clear | light snow | heavy snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
2 | 1 | — | — | — | 3 | 11 | 24 | 7 | 6 | 9 | — | — | — | — | 1 | 12 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -12 | -14 | -9 | -8 | -10 | -8 | -8 | -10 | -12 | -12 | -13 | -9 | -8 | -8 | -3 | -3 | -7 |
min °C | -13 | -15 | -11 | -10 | -10 | -8 | -9 | -12 | -12 | -12 | -13 | -11 | -11 | -10 | -5 | -5 | -11 |
-19 | -20 | -16 | -10 | -10 | -13 | -14 | -20 | -21 | -22 | -23 | -16 | -11 | -14 | -10 | -9 | -17 | |
81 | 87 | 63 | 60 | 80 | 89 | 87 | 95 | 94 | 93 | 93 | 82 | 76 | 69 | 77 | 84 | 94 | |
0 | 0 | 0 | 350 | 0 | 250 | 400 | 0 | 0 | 0 | 0 | 0 | 300 | 0 | 700 | 1150 | 0 | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 5:00 | — | — | 5:00 | — | — | 5:01 | — | — | 5:02 | — | — | 5:04 | — | — | 5:05 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be well below freezing (max -8°C on Fri afternoon, min -15°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the WNW by Sun morning).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -3°C on Tue morning, min -13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun afternoon, calm by Mon afternoon).
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Latest snow reports near Sun Valley (Nagano):
26 km away from Sun Valley (Nagano)
5 hours ago
It is snowing steadily at Togari Onsen. from Togari Onsen
23 km away from Sun Valley (Nagano)
10 hours agoIt is snowing heavily in Madarao Kogen. from Madarao Kogen
41 km away from Sun Valley (Nagano)
12 hours agoSnowing in Lotte Arai Resort. from Lotte Arai Resort
33 km away from Sun Valley (Nagano)
13 hours ago
Excellent on and off piste conditions. Heavy snow just keeps on falling. from Ikenotaira Onsen Alpenblick
8 km away from Sun Valley (Nagano)
14 hours agoSnow falling in Shiga Kogen-Okushiga Kogen. from Shiga Kogen-Okushiga Kogen
Sun Valley (Nagano) Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 28 cm |
| Last snowfall: | 21 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
Snow History
Week 4 of January has on average:
1.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.5 | Powder days Fresh snow, limited sun, any wind. |
0.9 | Bluebird days Average snow, mostly sunny, light wind. |
Sun Valley (Nagano) Forecast Snowfall
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Photos of Sun Valley (Nagano)
Upload new photo Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
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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