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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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Greenpia Onuma at 312 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 | |
 |  | | | |  | |  | |  |  | |  |  |  | | | |
light snow | snow shwrs | light snow | light snow | snow shwrs | cloudy | cloudy | cloudy | light snow | mod. snow | light snow | light snow | snow shwrs | some clouds | some clouds | light snow | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
1 | 4 | 4 | 1 | — | — | — | — | 1 | 6 | 3 | — | — | — | — | — | 1 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -3 | -7 | -7 | -8 | -7 | -3 | -3 | -3 | 1 | 2 | 1 | -1 | -3 | -3 | 1 | 1 | 1 |
min °C | -5 | -9 | -8 | -8 | -8 | -5 | -6 | -6 | 0 | 2 | 0 | -2 | -5 | -4 | -1 | 0 | -6 |
-10 | -18 | -16 | -16 | -16 | -11 | -9 | -9 | -4 | -2 | -7 | -9 | -13 | -11 | -6 | -4 | -14 | |
93 | 77 | 90 | 84 | 85 | 73 | 71 | 81 | 80 | 100 | 98 | 89 | 74 | 73 | 80 | 97 | 96 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 350 | 650 | 500 | 150 | 0 | 0 | 150 | 300 | 0 | |
 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — |
 | 4:06 | — | — | 4:06 | — | — | 4:06 | — | — | 4:06 | — | — | 4:06 | — | — | 4:06 | — |
Next 0-3 days weather summary:
A moderate fall of snow, heaviest on Fri morning. Freeze-thaw conditions (max 1°C on Sun morning, min -9°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
A moderate fall of snow, heaviest on Sun afternoon. Freeze-thaw conditions (max 2°C on Sun afternoon, min -7°C on Wed morning). Mainly fresh winds.
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Snow Radar
Latest snow reports near Greenpia Onuma:
Greenpia Onuma Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 2 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hokkaido are reporting: powder (5) / good piste (5)
Snow History
Week 2 of December has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
1.3 | Bluebird days Average snow, mostly sunny, light wind. |
Greenpia Onuma Forecast Snowfall
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Other resorts in Japan - Hokkaido are reporting: powder (5) / good piste (5)
The above table gives the weather forecast for Greenpia Onuma at the specific elevation of 312 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Greenpia Onuma. 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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