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Japan Weekly Snow Roundup #292
Weekly Snow News for Japan, updated 10 December 2025: early-season bases deepen rapidly as Siberian air drives repeated snow across Hokkaido and Honshu
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Shinnyuzan Ikoinomura at 1000 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 11 Dec 2025
Now
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  | | | | | | | | | |  | |
some clouds | light rain | light snow | light snow | clear | clear | some clouds | cloudy | light snow | light snow | light snow | light snow | light snow | some clouds | clear | some clouds | cloudy | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 4 | 1 | — | 1 | — | — | — | — | — | — | |
— | 1 | 2 | — | — | — | — | — | 14 | — | — | — | — | — | — | — | — | — | |
max °C | 7 | 7 | 5 | -3 | -2 | 0 | 4 | 4 | 4 | -1 | -1 | -1 | -1 | -1 | 0 | 3 | 3 | 4 |
min °C | 6 | 6 | -2 | -3 | -2 | -1 | 2 | 4 | 2 | -2 | -1 | -2 | -2 | -2 | -1 | 1 | 2 | 3 |
2 | 1 | -9 | -10 | -8 | -5 | -2 | 1 | -5 | -11 | -10 | -10 | -9 | -7 | -5 | -4 | -3 | -2 | |
35 | 79 | 95 | 94 | 71 | 47 | 64 | 83 | 99 | 86 | 83 | 87 | 80 | 77 | 64 | 79 | 83 | 92 | |
2100 | 2150 | 1400 | 650 | 800 | 600 | 1600 | 1700 | 2000 | 850 | 850 | 800 | 750 | 950 | 750 | 1100 | 1350 | 1400 | |
 | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Next 0-3 days weather summary:
Moderate rain (total 17.0mm) heaviest on Sat night, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 7°C on Thu morning, min -3°C on Fri morning). Winds increasing (calm on Fri night, strong winds from the WNW by Sat night).
Next 4-6 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 4°C on Tue night, min -2°C on Sun morning). Winds decreasing (near gales from the WNW on Sun morning, light winds from the W by Mon night).
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Latest snow reports near Shinnyuzan Ikoinomura:
Shinnyuzan Ikoinomura Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.5 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
Shinnyuzan Ikoinomura Forecast Snowfall
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Shinnyuzan Ikoinomura at the specific elevation of 1000 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shinnyuzan Ikoinomura. 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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