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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Snowhaven at 1707 m altitude
Issued by Snow-Forecast.com at: 9 pm (local time) / 17 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | |  |  | | | | | |  | | | | |
cloudy | light snow | light snow | light snow | light snow | clear | some clouds | clear | clear | light snow | light snow | light snow | mod. snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | 2 | 4 | 4 | 2 | — | — | — | — | — | 1 | — | 5 | 1 | — | 1 | |
— | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -2 | 1 | 2 | -2 | -5 | -5 | -3 | -3 | -2 | 0 | 0 | 1 | -1 | 0 | 0 |
min °C | -3 | -2 | 0 | 0 | -4 | -5 | -5 | -4 | -3 | -3 | -1 | 0 | -2 | -1 | 0 | 0 |
-10 | -7 | -6 | -7 | -12 | -13 | -13 | -10 | -8 | -8 | -6 | -5 | -5 | -4 | -4 | -5 | |
56 | 78 | 97 | 91 | 87 | 62 | 74 | 63 | 64 | 60 | 98 | 96 | 97 | 94 | 94 | 96 | |
1350 | 1250 | 1400 | 2200 | 1400 | 1050 | 850 | 1200 | 1150 | 1150 | 1400 | 1700 | 1750 | 1450 | 1600 | 1750 | |
 | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — |
 | — | — | 4:00 | — | — | 4:00 | — | — | 4:00 | — | — | 4:01 | — | — | 4:01 | — |
Next 0-3 days weather summary:
Mild at first with light rain (total 6.0mm) on Thu night followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 2°C on Thu night, min -5°C on Fri afternoon). Winds increasing (light winds from the SSW on Wed night, strong winds from the SW by Thu night).
Next 4-6 days weather summary:
A moderate fall of snow, heaviest on Sun night. Freeze-thaw conditions (max 1°C on Sun night, min -3°C on Sat night). Wind will be generally light.
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Latest snow reports near Snowhaven:
Snowhaven Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 4 cm |
| Last snowfall: | 16 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in USA - Idaho are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
Snowhaven Forecast Snowfall
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Other resorts in USA - Idaho are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Snowhaven at the specific elevation of 1707 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Snowhaven. 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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