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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 1703 m altitude
Issued by Snow-Forecast.com at: 2 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 | clear | heavy snow | mod. snow | light snow | snow shwrs | clear | cloudy | cloudy | light snow | light snow | heavy snow | snow shwrs | mod. snow | snow shwrs | some clouds | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 13 | 7 | 4 | 2 | — | — | — | 1 | 4 | 12 | 5 | 8 | 3 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 1 | -1 | -11 | -11 | -8 | -5 | -4 | 1 | 1 | -1 | -6 | -7 | -8 | -6 | -4 | -4 | -2 |
min °C | -1 | 0 | -10 | -11 | -11 | -11 | -7 | -5 | -4 | 1 | -5 | -8 | -8 | -8 | -7 | -6 | -5 | -4 |
-6 | -5 | -22 | -24 | -23 | -20 | -12 | -10 | -10 | -4 | -15 | -18 | -18 | -18 | -15 | -10 | -9 | -8 | |
50 | 47 | 86 | 83 | 77 | 80 | 67 | 61 | 91 | 97 | 95 | 87 | 87 | 93 | 81 | 54 | 65 | 42 | |
1550 | 1800 | 850 | 0 | 0 | 0 | 500 | 1050 | 1250 | 2100 | 1600 | 700 | 600 | 600 | 0 | 750 | 1050 | 400 | |
 | 6:45 | — | — | 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 1°C on Thu morning, min -11°C on Fri morning). Winds decreasing (near gales from the NW on Fri morning, light winds from the WNW by Sat morning).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Mon afternoon. Freeze-thaw conditions (max 1°C on Sun morning, min -8°C on Sun night). Winds decreasing (near gales from the WNW on Sun night, light winds from the W by Tue afternoon).
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Latest snow reports near Oze Iwakura Ski Resort:
39 km away from Oze Iwakura Ski Resort
13 hours ago
It is snowing steadily in Naeba. from Naeba
Oze Iwakura Ski Resort Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 6 cm |
| 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. |
|---|---|
2.0 | Powder days Fresh snow, limited sun, any wind. |
0.9 | 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 1703 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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