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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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Ipponsugi at 455 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | |  |  |  |  | | | | | |  | |
light snow | snow shwrs | clear | clear | clear | clear | clear | clear | some clouds | some clouds | light rain | mod. rain | light rain | light snow | clear | clear | some clouds | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 5 | 10 | 4 | 1 | — | — | — | — | |
max °C | 2 | 2 | 1 | 8 | 8 | 8 | 12 | 12 | 11 | 15 | 12 | 6 | 3 | 2 | 0 | 7 | 7 | 5 |
min °C | 1 | 0 | -1 | 5 | 5 | 5 | 10 | 9 | 10 | 13 | 9 | 4 | 2 | 1 | 0 | 4 | 3 | 3 |
-2 | 0 | -1 | 4 | 3 | 3 | 9 | 8 | 9 | 12 | 7 | 2 | 0 | 0 | 0 | 4 | 0 | 0 | |
95 | 84 | 65 | 64 | 71 | 65 | 80 | 81 | 82 | 80 | 94 | 98 | 97 | 86 | 77 | 57 | 65 | 77 | |
650 | 700 | 0 | 1950 | 2450 | 2600 | 2500 | 2650 | 2800 | 2950 | 2400 | 1150 | 850 | 750 | 400 | 1300 | 1900 | 1950 | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — |
Next 0-3 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 12°C on Sat morning, min -1°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
Heavy rain (total 20.0mm), heaviest during Sun afternoon. Freeze-thaw conditions (max 15°C on Sun morning, min 0°C on Mon night). Wind will be generally light.
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Latest snow reports near Ipponsugi:
31 km away from Ipponsugi
10 hours ago
Snow is falling in Nozawa Onsen. from Nozawa Onsen
16 km away from Ipponsugi
22 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
Ipponsugi Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 9 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:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Ipponsugi Forecast Snowfall
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Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Ipponsugi at the specific elevation of 455 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Ipponsugi. 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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