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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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Itsukamachi at 500 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 18 Dec 2025
Now
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  |  |  |  |  |  | | | | | | |
snow shwrs | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | mod. rain | light snow | light snow | light snow | clear | clear | clear | some clouds | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | 7 | 13 | — | — | — | — | — | — | |
max °C | 1 | 0 | 8 | 8 | 6 | 13 | 13 | 11 | 14 | 11 | 5 | 0 | 0 | -1 | 7 | 7 | 5 |
min °C | -1 | -2 | 5 | 5 | 5 | 9 | 10 | 10 | 12 | 9 | 1 | 0 | -1 | -2 | 4 | 3 | 3 |
-1 | -2 | 4 | 3 | 3 | 8 | 9 | 9 | 11 | 7 | -3 | -4 | -1 | -2 | 4 | 0 | 0 | |
81 | 64 | 57 | 67 | 64 | 76 | 78 | 77 | 79 | 95 | 96 | 96 | 85 | 72 | 47 | 54 | 66 | |
600 | 0 | 1950 | 2500 | 2600 | 2550 | 2700 | 2900 | 3050 | 2600 | 1100 | 500 | 500 | 0 | 1800 | 2100 | 2400 | |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 14°C on Sun morning, min -2°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
Heavy rain (total 20.0mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 11°C on Sun afternoon, min -2°C on Mon night). Wind will be generally light.
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Latest snow reports near Itsukamachi:
19 km away from Itsukamachi
9 hours ago
It is snowing steadily in Ishiuchi Maruyama. from Ishiuchi Maruyama
45 km away from Itsukamachi
21 hours agoSnow is falling in Nozawa Onsen. from Nozawa Onsen
Itsukamachi Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 4 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. |
|---|---|
1.8 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Itsukamachi 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 Itsukamachi at the specific elevation of 500 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Itsukamachi. 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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