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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) / 05 Feb 2026
Now
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | |  | |  | |  | |  | | | | |
light rain | light rain | light rain | some clouds | light snow | light snow | light snow | light snow | mod. snow | light snow | heavy snow | light snow | clear | clear | some clouds | light snow | light snow | light rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 1 | 1 | 2 | 8 | 3 | 21 | 2 | — | — | — | — | — | — | |
1 | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
max °C | 3 | 3 | 3 | 1 | 1 | -1 | -2 | -3 | -7 | -10 | -9 | -8 | -3 | -1 | 0 | 0 | 1 | 4 |
min °C | 3 | 3 | 1 | 0 | -1 | -2 | -2 | -6 | -10 | -11 | -9 | -9 | -5 | -2 | -1 | 0 | 1 | 1 |
-3 | -3 | -5 | -6 | -6 | -8 | -6 | -16 | -22 | -23 | -21 | -17 | -12 | -7 | -6 | -6 | -4 | -4 | |
92 | 92 | 93 | 71 | 67 | 97 | 98 | 97 | 94 | 89 | 96 | 91 | 61 | 58 | 51 | 97 | 97 | 94 | |
1350 | 1450 | 1450 | 1100 | 1100 | 800 | 700 | 600 | 0 | 0 | 0 | 0 | 0 | 850 | 0 | 1000 | 1150 | 1800 | |
 | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — |
Next 0-3 days weather summary:
Mild at first with light rain (total 6.0mm) on Thu morning followed by colder weather and light fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 3°C on Thu morning, min -10°C on Sat night). Winds increasing (light winds from the W on Sat morning, near gales from the WNW by Sat night).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Sun afternoon. Becoming milder with light rain (total 3.0mm) on Tue night. Freeze-thaw conditions (max 4°C on Tue night, min -11°C on Sun morning). Winds decreasing (near gales from the WNW on Sun morning, light winds from the W by Mon morning).
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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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