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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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Shirakaba Kogen Kokusai at 1550 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 | |
 |  | | |  |  | |  |  | |  |  | | | | | | |
clear | clear | clear | clear | rain shwrs | some clouds | clear | light rain | light rain | light rain | light snow | snow shwrs | clear | clear | clear | some clouds | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 1 | — | — | 1 | 1 | 2 | 3 | — | — | — | — | — | — | |
max °C | -2 | -2 | 4 | 5 | 3 | 7 | 7 | 5 | 6 | 6 | 4 | -2 | -3 | -3 | 3 | 2 | -2 |
min °C | -4 | -4 | 1 | 1 | 1 | 4 | 4 | 4 | 6 | 5 | -3 | -4 | -5 | -5 | -1 | -2 | -3 |
-7 | -7 | -2 | -3 | -4 | 0 | 0 | 0 | 2 | 2 | -9 | -10 | -9 | -7 | -4 | -7 | -8 | |
70 | 64 | 44 | 40 | 67 | 92 | 79 | 90 | 87 | 91 | 98 | 89 | 75 | 60 | 52 | 44 | 76 | |
1250 | 1150 | 1950 | 2600 | 2450 | 2500 | 2700 | 2850 | 2900 | 2800 | 1700 | 900 | 1100 | 950 | 1450 | 2100 | 1350 | |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 4:34 | — | — | 4:34 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — |
Next 0-3 days weather summary:
Light rain (total 3.0mm), mostly falling on Fri night. Freeze-thaw conditions (max 7°C on Sat morning, min -4°C on Thu afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Light rain (total 5.0mm), mostly falling on Sun night. Freeze-thaw conditions (max 6°C on Sun afternoon, min -5°C on Mon afternoon). Wind will be generally light.
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Latest snow reports near Shirakaba Kogen Kokusai:
11 km away from Shirakaba Kogen Kokusai
23 hours ago
Rain and snow or hail reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine Ski Resort from Kirigamine
Shirakaba Kogen Kokusai Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3.0 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
Snow History
Week 3 of December has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.1 | Powder days Fresh snow, limited sun, any wind. |
1.7 | Bluebird days Average snow, mostly sunny, light wind. |
Shirakaba Kogen Kokusai Forecast Snowfall
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Photos of Shirakaba Kogen Kokusai
Sun Attack!! by Hiro
View by Hiro
pistes by Nick Russill
Upload new photo Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
The above table gives the weather forecast for Shirakaba Kogen Kokusai at the specific elevation of 1550 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shirakaba Kogen 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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