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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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Joetsu Kokusai at 608 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 | |
 |  |  |  |  | |  | | | |  |  |  | | |  | |
mod. snow | light snow | snow shwrs | clear | clear | clear | some clouds | clear | clear | some clouds | some clouds | light rain | mod. rain | light snow | light snow | snow shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
7 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | 4 | 8 | 1 | — | — | |
max °C | 1 | 0 | 0 | 1 | 8 | 8 | 8 | 12 | 12 | 11 | 14 | 10 | 6 | 2 | 2 | 1 |
min °C | 0 | 0 | -1 | -1 | 5 | 5 | 5 | 10 | 9 | 10 | 12 | 8 | 3 | 2 | 1 | -1 |
-3 | -3 | -1 | -1 | 4 | 3 | 3 | 9 | 7 | 8 | 11 | 7 | 0 | -1 | -1 | -1 | |
99 | 98 | 84 | 61 | 57 | 63 | 57 | 76 | 78 | 76 | 75 | 94 | 97 | 97 | 90 | 80 | |
650 | 600 | 650 | 0 | 2000 | 2500 | 2600 | 2550 | 2650 | 2850 | 2950 | 2600 | 1150 | 950 | 800 | 600 | |
 | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Next 0-3 days weather summary:
A light covering of new snow, mostly falling on Wed night. Freeze-thaw conditions (max 12°C on Sat morning, min -1°C on Thu afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Moderate rain (total 13.0mm), heaviest on Sun afternoon. Freeze-thaw conditions (max 14°C on Sun morning, min -1°C on Mon night). Wind will be generally light.
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Latest snow reports near Joetsu Kokusai:
35 km away from Joetsu Kokusai
7 hours ago
Snow is falling in Nozawa Onsen. from Nozawa Onsen
27 km away from Joetsu Kokusai
19 hours agoNo clouds over Naeba today. No wind here. Temperatures are around freezing. A dusting of new snow. Only some lifts are open. from Naeba
Joetsu Kokusai Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 12 cm |
| Last snowfall: | 16 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:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.1 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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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