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Japan Weekly Snow Roundup #300
Weekly Snow News for Japan, updated 4th February 2026: Snowpack passes six metres at Seki Onsen as storms continue.
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Osa at 1030 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 06 Feb 2026
Now
Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  | | |  |  | | | | | | | |
cloudy | light snow | light snow | light snow | light snow | light snow | light snow | heavy snow | light snow | light snow | clear | clear | cloudy | light snow | light snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | 2 | 3 | 3 | 20 | 2 | — | — | — | — | — | 1 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 1 | -1 | -2 | -4 | -6 | -9 | -9 | -8 | -5 | -2 | -1 | 1 | 2 | 2 | 1 | 1 | -1 |
min °C | 1 | -1 | -2 | -3 | -6 | -10 | -10 | -9 | -8 | -7 | -2 | -2 | 0 | 1 | 1 | 1 | 0 | -1 |
-5 | -7 | -8 | -11 | -16 | -22 | -21 | -19 | -18 | -14 | -7 | -7 | -6 | -5 | -5 | -2 | -5 | -6 | |
61 | 85 | 89 | 94 | 92 | 90 | 91 | 96 | 81 | 91 | 56 | 48 | 63 | 90 | 99 | 99 | 98 | 93 | |
1200 | 1150 | 850 | 750 | 550 | 0 | 0 | 0 | 0 | 0 | 700 | 0 | 1100 | 1350 | 1450 | 1300 | 1100 | 850 | |
 | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Sun afternoon. Freeze-thaw conditions (max 2°C on Fri morning, min -10°C on Sat night). Winds increasing (light winds from the NW on Fri night, strong winds from the WNW by Sat afternoon).
Next 4-6 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 2°C on Tue afternoon, min -7°C on Mon morning). Winds decreasing (fresh winds from the WSW on Tue morning, light winds from the WSW by Wed morning).
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Snow Radar
Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 2 Feb 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 1 of February has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.4 | Powder days Fresh snow, limited sun, any wind. |
1.6 | 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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