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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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Ishiuchi Maruyama at 920 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 11 Dec 2025
Now
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  | |  |  |  |  | | | |  | |  | |
some clouds | some clouds | heavy snow | mod. snow | mod. snow | mod. snow | snow shwrs | some clouds | light rain | mod. rain | light snow | light snow | light snow | light snow | light snow | clear | clear | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 32 | 9 | 7 | 5 | — | — | — | — | 2 | 4 | 4 | 4 | 3 | — | — | — | |
— | — | — | — | — | — | — | — | 1 | 7 | 1 | — | — | — | — | — | — | — | |
max °C | 7 | 6 | 1 | -6 | -6 | -6 | -2 | -1 | 3 | 3 | 2 | -2 | -3 | -3 | -3 | 0 | 0 | 0 |
min °C | 4 | 5 | -6 | -6 | -6 | -6 | -4 | -1 | 0 | 3 | 0 | -3 | -3 | -3 | -4 | -2 | -1 | 0 |
1 | 1 | -16 | -16 | -15 | -13 | -4 | -3 | -5 | 0 | -8 | -12 | -11 | -11 | -9 | -2 | -3 | -3 | |
50 | 61 | 97 | 96 | 95 | 95 | 83 | 71 | 70 | 100 | 100 | 96 | 95 | 93 | 91 | 72 | 63 | 62 | |
1750 | 1850 | 600 | 0 | 0 | 0 | 350 | 800 | 1650 | 1700 | 1450 | 600 | 500 | 550 | 0 | 650 | 950 | 650 | |
 | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:29 | — | — | 4:29 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Thu night. Becoming milder with drizzle, on Sat night. Freeze-thaw conditions (max 7°C on Thu morning, min -6°C on Thu night). Winds decreasing (strong winds from the NW on Thu night, calm by Sat morning).
Next 4-6 days weather summary:
Mild at first with light rain (total 8.0mm) on Sun morning followed by colder weather and light fall of snow, heaviest on Mon morning. Freeze-thaw conditions (max 3°C on Sun morning, min -4°C on Mon night). Winds decreasing (near gales from the WNW on Sun night, calm by Tue morning).
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Latest snow reports near Ishiuchi Maruyama:
30 km away from Ishiuchi Maruyama
18 hours ago
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30 km away from Ishiuchi Maruyama
18 hours agoSnow is falling in Nozawa Onsen. from Nozawa Onsen
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18 hours agoSnow falling in Nozawa Onsen. from Nozawa Onsen
20 km away from Ishiuchi Maruyama
21 hours agoIt is snowing steadily in Naeba. from Naeba
Ishiuchi Maruyama Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 14 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.5 | 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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