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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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Joetsu Kokusai at 608 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 | light snow | some clouds | some clouds | light rain | mod. rain | light snow | light snow | light snow | light snow | light snow | clear | clear | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 24 | 8 | 6 | 5 | — | — | — | — | 2 | 3 | 3 | 3 | 3 | — | — | — | |
— | — | 4 | — | — | — | — | — | 1 | 6 | 1 | — | — | — | — | — | — | — | |
max °C | 8 | 8 | 3 | -4 | -4 | -4 | -1 | 1 | 3 | 4 | 4 | 1 | -1 | 0 | -1 | 2 | 2 | 1 |
min °C | 5 | 5 | -4 | -4 | -4 | -4 | -2 | 0 | 0 | 4 | 2 | -1 | -1 | -1 | -3 | 0 | 0 | 0 |
3 | 2 | -12 | -12 | -11 | -9 | -2 | -3 | -5 | 2 | -5 | -8 | -7 | -7 | -3 | 0 | -2 | -2 | |
62 | 70 | 98 | 95 | 93 | 96 | 85 | 77 | 75 | 99 | 100 | 97 | 93 | 90 | 93 | 77 | 74 | 70 | |
1800 | 1850 | 550 | 0 | 0 | 0 | 350 | 750 | 1700 | 1700 | 1400 | 600 | 500 | 550 | 250 | 600 | 950 | 550 | |
 | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 4:27 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:29 | — |
Next 0-3 days weather summary:
Light rain (total 5.0mm) on Thu night. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 8°C on Thu morning, min -4°C on Thu night). Winds decreasing (fresh winds from the NW on Thu night, calm by Sat morning).
Next 4-6 days weather summary:
Mild at first with light rain (total 7.0mm) on Sun morning followed by colder weather and light fall of snow, heaviest on Sun afternoon. Freeze-thaw conditions (max 4°C on Sun morning, min -3°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Mon night).
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Latest snow reports near Joetsu Kokusai:
35 km away from Joetsu Kokusai
17 hours ago
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35 km away from Joetsu Kokusai
17 hours agoSnow is falling in Nozawa Onsen. from Nozawa Onsen
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17 hours agoSnow falling in Nozawa Onsen. from Nozawa Onsen
27 km away from Joetsu Kokusai
20 hours agoIt is snowing steadily in Naeba. from Naeba
Joetsu Kokusai Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 17 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:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
Joetsu Kokusai Forecast Snowfall
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Photos of Joetsu Kokusai
Upload new photo Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Joetsu Kokusai at the specific elevation of 608 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Joetsu Kokusai. 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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