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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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Shinnyuzan Ikoinomura at 1000 m altitude
Issued by Snow-Forecast.com at: 8 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 | |
 |  | |  |  |  |  | | |  |  | |  | | | | |
snow shwrs | clear | clear | clear | some clouds | cloudy | some clouds | some clouds | some clouds | mod. rain | mod. rain | cloudy | cloudy | cloudy | clear | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
1 | — | — | — | — | — | — | — | — | 9 | 8 | — | — | — | — | — | |
max °C | 2 | 4 | 5 | 6 | 8 | 7 | 8 | 11 | 11 | 11 | 9 | 5 | 4 | 3 | 2 | 4 |
min °C | 1 | 3 | 4 | 5 | 7 | 6 | 6 | 9 | 11 | 10 | 7 | 5 | 3 | 1 | 2 | 2 |
-2 | 1 | 4 | 5 | 4 | 2 | 2 | 6 | 9 | 7 | 4 | 2 | 0 | -4 | -3 | -2 | |
87 | 75 | 66 | 40 | 39 | 72 | 80 | 85 | 76 | 87 | 97 | 91 | 84 | 77 | 69 | 51 | |
1250 | 1450 | 1850 | 2500 | 2700 | 2550 | 2650 | 2700 | 2900 | 2900 | 2800 | 2600 | 1750 | 1600 | 1300 | 1850 | |
 | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — | — | 5:02 | — | — | 5:04 | — |
Next 0-3 days weather summary:
Some drizzle, heaviest during Wed night. Very mild (max 11°C on Sat morning, min 1°C on Wed night). Wind will be generally light.
Next 4-6 days weather summary:
Moderate rain (total 17.0mm), heaviest on Sun morning. Very mild (max 11°C on Sat night, min 1°C on Mon morning). Mainly fresh winds.
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Latest snow reports near Shinnyuzan Ikoinomura:
Shinnyuzan Ikoinomura Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.9 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
Shinnyuzan Ikoinomura Forecast Snowfall
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Shinnyuzan Ikoinomura at the specific elevation of 1000 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shinnyuzan Ikoinomura. 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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