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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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Yunomaru at 1838 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 | |
 |  |  | |  |  |  | |  | | | | |  | | | | |
some clouds | snow shwrs | snow shwrs | snow shwrs | some clouds | clear | cloudy | snow shwrs | light snow | snow shwrs | snow shwrs | snow shwrs | snow shwrs | clear | clear | clear | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | 7 | — | — | — | — | — | — | 4 | 2 | 1 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | -2 | -10 | -10 | -8 | -5 | -3 | -1 | -1 | -2 | -7 | -8 | -7 | -6 | -4 | -3 | -2 |
min °C | 0 | -10 | -10 | -10 | -10 | -7 | -4 | -4 | -1 | -4 | -8 | -8 | -7 | -7 | -5 | -3 | -3 |
-8 | -21 | -21 | -20 | -19 | -13 | -9 | -10 | -6 | -13 | -18 | -18 | -15 | -14 | -10 | -9 | -10 | |
43 | 95 | 67 | 60 | 54 | 42 | 43 | 84 | 99 | 92 | 75 | 75 | 68 | 54 | 32 | 50 | 62 | |
2000 | 900 | 350 | 350 | 0 | 450 | 1250 | 950 | 1300 | 1550 | 700 | 650 | 850 | 0 | 850 | 1350 | 1300 | |
 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — | — | 4:31 | — |
Next 0-3 days weather summary:
A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 1°C on Thu afternoon, min -10°C on Thu night). Winds decreasing (strong winds from the WSW on Thu afternoon, light winds from the SW by Sat afternoon).
Next 4-6 days weather summary:
A dusting of new snow. Temperatures will be below freezing (max -2°C on Sun afternoon, min -8°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the W by Tue morning).
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Latest snow reports near Yunomaru:
43 km away from Yunomaru
43 minutes ago
Continuous light rain reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine but it is forecast cold enough for snow at the ski area from Kirigamine
43 km away from Yunomaru
2 hours agoRain and snow or hail reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine Ski Resort from Kirigamine
Yunomaru Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 8 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:
0.9 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
2.7 | Bluebird days Average snow, mostly sunny, light wind. |
Yunomaru 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 Yunomaru at the specific elevation of 1838 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Yunomaru. 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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