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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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Onbara Kogen at 900 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 10 Dec 2025
Now
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  |  | |  | | | | |  | | |
cloudy | cloudy | some clouds | light snow | light snow | light snow | snow shwrs | clear | some clouds | heavy rain | light snow | light snow | snow shwrs | light snow | snow shwrs | snow shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | 5 | 3 | 1 | — | — | — | — | 1 | 1 | 6 | 3 | — | — | |
— | — | — | 6 | — | — | — | — | — | 11 | 2 | — | — | — | — | — | |
max °C | 5 | 7 | 7 | 5 | -3 | -3 | -2 | 2 | 4 | 4 | 2 | 1 | 0 | 0 | 0 | -2 |
min °C | 3 | 5 | 6 | -2 | -3 | -4 | -3 | 0 | 3 | 3 | 1 | 0 | -2 | -1 | 0 | -2 |
1 | 0 | 1 | -9 | -11 | -11 | -9 | -2 | -1 | -2 | -7 | -7 | -10 | -8 | -6 | -7 | |
50 | 50 | 72 | 95 | 94 | 88 | 93 | 60 | 68 | 96 | 96 | 90 | 95 | 96 | 91 | 89 | |
1900 | 1800 | 1800 | 1200 | 550 | 500 | 350 | 900 | 1700 | 1850 | 1250 | 1000 | 800 | 750 | 900 | 650 | |
 | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | — | 4:51 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — |
Next 0-3 days weather summary:
Mild with light rain (total 6.0mm) on Thu night Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 7°C on Thu morning, min -4°C on Fri afternoon). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Sat morning).
Next 4-6 days weather summary:
Moderate rain (total 13.0mm), heaviest on Sat night giving way to a moderate fall of snow, heaviest on Sun night. Freeze-thaw conditions (max 4°C on Sat night, min -2°C on Sun night). Winds decreasing (strong winds from the NW on Sun morning, calm by Tue morning).
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Latest snow reports near Onbara Kogen:
Onbara Kogen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 5 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Okayama are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
Onbara Kogen Forecast Snowfall
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Other resorts in Japan - Okayama are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Onbara Kogen at the specific elevation of 900 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Onbara Kogen. 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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