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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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Kashimayari at 1530 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 | |
 |  |  |  |  | |  | | |  |  |  |  |  | | | |
snow shwrs | snow shwrs | some clouds | clear | clear | clear | rain shwrs | clear | clear | some clouds | rain shwrs | light rain | light snow | light snow | light snow | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
9 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | |
— | — | — | — | — | — | 2 | — | — | — | 1 | 5 | — | — | — | — | |
max °C | -2 | -4 | -4 | 0 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 6 | 2 | -2 | -2 | -4 |
min °C | -6 | -5 | -5 | -3 | 2 | 4 | 3 | 5 | 6 | 5 | 7 | 4 | -2 | -2 | -3 | -5 |
-9 | -7 | -5 | -5 | 0 | 1 | 0 | 2 | 4 | 2 | 5 | 3 | -6 | -6 | -5 | -5 | |
98 | 80 | 87 | 48 | 35 | 53 | 41 | 78 | 83 | 67 | 73 | 93 | 99 | 99 | 98 | 95 | |
900 | 750 | 1000 | 700 | 2050 | 2450 | 2450 | 2450 | 2600 | 2750 | 2800 | 2650 | 1600 | 1150 | 1200 | 750 | |
 | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | — | 4:34 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — |
Next 0-3 days weather summary:
A light covering of new snow, mostly falling on Wed night. Becoming milder with light rain (total 2.0mm) on Fri night. Freeze-thaw conditions (max 6°C on Sat morning, min -6°C on Wed night). Wind will be generally light.
Next 4-6 days weather summary:
Light rain (total 6.0mm) at first, then becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 7°C on Sun morning, min -5°C on Mon night). Wind will be generally light.
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Latest snow reports near Kashimayari:
30 km away from Kashimayari
4 hours ago
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
30 km away from Kashimayari
5 hours agoContinuous light rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
10 km away from Kashimayari
7 hours ago
Snow falling heavily in Hakuba 47. from Hakuba 47
Kashimayari Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 5 cm |
| Last snowfall: | 16 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
Snow History
Week 3 of December has on average:
1.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.0 | Powder days Fresh snow, limited sun, any wind. |
1.0 | Bluebird days Average snow, mostly sunny, light wind. |
Kashimayari Forecast Snowfall
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Photos of Kashimayari
Upload new photo Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
The above table gives the weather forecast for Kashimayari at the specific elevation of 1530 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Kashimayari. 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.
Resort name is also written as Sun Alpina Kashimayari.
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