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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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Yamada Bokujo at 1637 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 | |
 |  |  |  | |  | | | | |  | | | |  | | |  | |
clear | some clouds | heavy snow | light snow | light snow | light snow | clear | some clouds | light snow | light snow | mod. snow | light snow | light snow | light snow | snow shwrs | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 19 | 4 | 3 | 1 | — | — | — | 4 | 6 | 5 | 2 | 3 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 3 | -2 | -10 | -10 | -9 | -5 | -3 | -1 | 0 | -1 | -6 | -7 | -7 | -6 | -4 | -3 | -2 |
min °C | 0 | 1 | -10 | -11 | -11 | -10 | -7 | -4 | -5 | 0 | -5 | -8 | -7 | -7 | -8 | -5 | -3 | -3 |
-5 | -5 | -20 | -22 | -20 | -17 | -11 | -8 | -11 | -5 | -14 | -16 | -15 | -15 | -14 | -8 | -6 | -7 | |
35 | 45 | 95 | 86 | 83 | 74 | 64 | 52 | 76 | 99 | 97 | 89 | 91 | 89 | 74 | 45 | 47 | 56 | |
1650 | 1950 | 700 | 0 | 0 | 0 | 450 | 1150 | 850 | 1550 | 1450 | 600 | 600 | 650 | 0 | 700 | 1150 | 800 | |
 | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
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 -11°C on Fri morning). Winds decreasing (fresh winds from the NW on Fri morning, light winds from the WNW by Sat morning).
Next 4-6 days weather summary:
A moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max 0°C on Sun morning, min -8°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, calm by Mon night).
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Yamada Bokujo Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 1 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
Snow History
Week 2 of December has on average:
2.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
0.9 | Bluebird days Average snow, mostly sunny, light wind. |
Yamada Bokujo Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
The above table gives the weather forecast for Yamada Bokujo at the specific elevation of 1637 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Yamada Bokujo. 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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