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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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Ishiuchi Maruyama at 920 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 18 Dec 2025
Now
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | | |  |  |  |  |  | | | | | | |
clear | clear | clear | clear | clear | clear | some clouds | some clouds | mod. rain | light snow | light snow | light snow | clear | some clouds | some clouds | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | 4 | 3 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | 6 | 5 | — | — | — | — | — | — | |
max °C | 0 | 6 | 7 | 6 | 10 | 10 | 10 | 12 | 9 | 2 | -3 | -4 | -1 | 5 | 4 | 5 |
min °C | -2 | 4 | 5 | 5 | 8 | 9 | 9 | 11 | 5 | -2 | -3 | -4 | -3 | 2 | 3 | 3 |
-2 | 3 | 3 | 3 | 6 | 7 | 7 | 9 | 2 | -8 | -8 | -8 | -3 | 1 | 0 | 0 | |
56 | 47 | 52 | 49 | 70 | 73 | 62 | 71 | 97 | 98 | 96 | 92 | 57 | 37 | 48 | 53 | |
0 | 1950 | 2450 | 2600 | 2550 | 2700 | 3000 | 2850 | 2650 | 1050 | 500 | 450 | 0 | 1550 | 1900 | 2250 | |
 | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — |
Next 0-3 days weather summary:
Light rain (total 6.0mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 12°C on Sun morning, min -2°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
Mild with light rain (total 7.0mm) on Sun night Becoming colder with a light covering of snow, mostly falling on Mon morning. Freeze-thaw conditions (max 6°C on Wed morning, min -4°C on Mon afternoon). Winds increasing (calm on Mon night, fresh winds from the SSE by Wed morning).
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Latest snow reports near Ishiuchi Maruyama:
- 14 hours ago
It is snowing steadily in Ishiuchi Maruyama. from Ishiuchi Maruyama
Ishiuchi Maruyama Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 12 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.5 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.7 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
Ishiuchi Maruyama Forecast Snowfall
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Photos of Ishiuchi Maruyama
Terrain park at Ishiuchi Maryuama by Snow Country Instructors
Top lift at Ishiuchi Maruyama by Snow Country Instructors
Ishiuchi Maruyama Snow Garden area by Snow Country Instructors
Upload new photo Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Ishiuchi Maruyama at the specific elevation of 920 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Ishiuchi Maruyama. 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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