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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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Oze Iwakura Ski Resort at 1354 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 11 Dec 2025
Now
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  |  | | |  | | | | | | | |
clear | heavy snow | mod. snow | light snow | snow shwrs | clear | cloudy | light snow | light snow | light snow | mod. snow | light snow | light snow | snow shwrs | clear | clear | snow shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | 12 | 6 | 4 | 2 | — | — | — | 2 | 3 | 10 | 4 | 4 | 1 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 3 | 0 | -9 | -9 | -7 | -3 | -2 | 1 | 2 | 1 | -4 | -5 | -5 | -5 | -1 | -1 | 0 |
min °C | 1 | -8 | -9 | -9 | -9 | -6 | -3 | -3 | 1 | -2 | -6 | -6 | -6 | -6 | -3 | -1 | -1 |
-2 | -18 | -20 | -18 | -15 | -6 | -7 | -8 | -1 | -10 | -15 | -15 | -12 | -10 | -3 | -1 | -3 | |
47 | 90 | 86 | 87 | 88 | 60 | 58 | 97 | 96 | 98 | 92 | 89 | 89 | 85 | 54 | 70 | 66 | |
1850 | 850 | 0 | 0 | 0 | 500 | 1050 | 1200 | 1850 | 1600 | 650 | 550 | 550 | 0 | 900 | 1250 | 1050 | |
 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — |
 | 4:25 | — | — | 4:27 | — | — | 4:27 | — | — | 4:27 | — | — | 4:27 | — | — | 4:28 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Thu afternoon, min -9°C on Fri morning). Winds decreasing (strong winds from the NW on Thu night, calm by Sat night).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 1°C on Sun afternoon, min -6°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, calm by Tue morning).
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Latest snow reports near Oze Iwakura Ski Resort:
Oze Iwakura Ski Resort Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 9 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Gunma are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
1.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.9 | Powder days Fresh snow, limited sun, any wind. |
1.0 | Bluebird days Average snow, mostly sunny, light wind. |
Oze Iwakura Ski Resort Forecast Snowfall
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Other resorts in Japan - Gunma are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Oze Iwakura Ski Resort at the specific elevation of 1354 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Oze Iwakura Ski Resort. 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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