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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
View forecast
Sundown Mountain at 215 m altitude
Issued by Snow-Forecast.com at: 11 am (local time) / 10 Dec 2025
Now
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | |  | | |  |  | |  |  | | | |
light snow | cloudy | snow shwrs | cloudy | light snow | light snow | cloudy | light snow | cloudy | cloudy | light snow | clear | clear | clear | some clouds | some clouds | cloudy | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -4 | -10 | -8 | -6 | -7 | -6 | -6 | -13 | -15 | -15 | -20 | -16 | -14 | -15 | -8 | -6 | -9 |
min °C | -3 | -6 | -15 | -12 | -7 | -14 | -10 | -10 | -17 | -16 | -17 | -23 | -22 | -20 | -21 | -12 | -10 | -12 |
-10 | -12 | -19 | -12 | -10 | -19 | -14 | -18 | -26 | -24 | -26 | -33 | -32 | -25 | -26 | -20 | -10 | -12 | |
89 | 84 | 94 | 90 | 80 | 96 | 92 | 88 | 83 | 77 | 78 | 91 | 93 | 85 | 95 | 76 | 84 | 94 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
 | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — |
 | — | 4:29 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Next 0-3 days weather summary:
A dusting of new snow. Temperatures will be below freezing (max -2°C on Wed morning, min -17°C on Fri night). Wind will be generally light.
Next 4-6 days weather summary:
Mostly dry. Temperatures will be well below freezing (max -6°C on Mon afternoon, min -23°C on Sat night). Wind will be generally light.
Popular Sundown Mountain Pages
Snow Radar
Latest snow reports near Sundown Mountain:
Sundown Mountain Snow Conditions
| Top snow depth: | 51 cm |
|---|---|
| Bottom snow depth: | 10 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 6 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - Iowa are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
1.7 | Bluebird days Average snow, mostly sunny, light wind. |
Sundown Mountain Forecast Snowfall
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Other resorts in USA - Iowa are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Sundown Mountain at the specific elevation of 215 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sundown Mountain. 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 United States.
Click here to read further information on freezing levels and how we forecast our temperatures.
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