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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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Osa at 1030 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 22 Jan 2026
Now
Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | | | | | |  |  | | | | | |
light snow | light snow | light snow | mod. snow | light snow | light snow | light snow | light snow | light snow | light snow | some clouds | cloudy | light snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
1 | — | — | 7 | 1 | — | — | — | — | — | — | — | 2 | — | — | 2 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -8 | -6 | -6 | -4 | -5 | -7 | -6 | -5 | -6 | -5 | -2 | -1 | -1 | -3 | -4 | -4 |
min °C | -9 | -8 | -6 | -5 | -6 | -7 | -8 | -7 | -6 | -6 | -3 | -1 | -2 | -3 | -4 | -5 |
-20 | -19 | -15 | -13 | -16 | -18 | -19 | -16 | -14 | -13 | -7 | -5 | -8 | -11 | -13 | -13 | |
90 | 89 | 81 | 93 | 87 | 82 | 78 | 86 | 87 | 94 | 76 | 69 | 97 | 96 | 92 | 88 | |
0 | 0 | 450 | 300 | 450 | 250 | 0 | 250 | 350 | 0 | 550 | 950 | 650 | 700 | 600 | 400 | |
 | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — |
Next 0-3 days weather summary:
A moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max -4°C on Fri night, min -9°C on Thu night). Winds decreasing (near gales from the WNW on Sat night, moderate winds from the NW by Sun afternoon).
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Tue night. Temperatures will be below freezing (max -1°C on Mon afternoon, min -6°C on Sun night). Winds increasing (light winds from the NNW on Sun night, strong winds from the WNW by Tue afternoon).
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Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 8 cm |
| Last snowfall: | 21 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 4 of January has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.7 | Powder days Fresh snow, limited sun, any wind. |
1.0 | Bluebird days Average snow, mostly sunny, light wind. |
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Osa at the specific elevation of 1030 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. 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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