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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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Chateau Shiozawa at 394 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 19 Dec 2025
Now
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | |  |  |  |  |  | | |  | | |  | | | |
clear | clear | clear | clear | clear | some clouds | cloudy | mod. rain | light snow | light snow | light snow | clear | some clouds | some clouds | some clouds | light rain | light rain | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | 3 | |
— | — | — | — | — | — | — | 7 | 13 | — | — | — | — | — | — | 1 | 2 | 11 | |
max °C | 9 | 9 | 6 | 13 | 13 | 11 | 14 | 11 | 6 | 1 | 0 | -1 | 7 | 7 | 6 | 9 | 9 | 6 |
min °C | 5 | 5 | 5 | 10 | 9 | 10 | 13 | 9 | 2 | 0 | 0 | -2 | 4 | 3 | 3 | 8 | 8 | 1 |
4 | 3 | 3 | 9 | 7 | 9 | 12 | 7 | -1 | -3 | -2 | -2 | 3 | 0 | 0 | 5 | 8 | -2 | |
63 | 69 | 67 | 74 | 76 | 79 | 79 | 94 | 96 | 97 | 85 | 78 | 55 | 59 | 70 | 72 | 83 | 97 | |
1900 | 2500 | 2550 | 2500 | 2650 | 2900 | 2800 | 2650 | 1000 | 450 | 450 | 0 | 1750 | 2100 | 2450 | 2850 | 2600 | 1000 | |
 | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:31 | — |
Next 0-3 days weather summary:
Heavy rain (total 20.0mm), heaviest during Sun night. Later becoming colder with a dusting of snow on Sun night. Very mild (max 14°C on Sun morning, min 2°C on Sun night). Wind will be generally light.
Next 4-6 days weather summary:
Mild with moderate rain (total 14.0mm) on Wed night, Becoming colder with a light covering of snow, mostly falling on Wed night. Freeze-thaw conditions (max 9°C on Wed morning, min -2°C on Mon night). Wind will be generally light.
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Latest snow reports near Chateau Shiozawa:
10 km away from Chateau Shiozawa
31 hours ago
It is snowing steadily in Ishiuchi Maruyama. from Ishiuchi Maruyama
37 km away from Chateau Shiozawa
43 hours agoSnow is falling in Nozawa Onsen. from Nozawa Onsen
Chateau Shiozawa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 6 cm |
| Last snowfall: | 18 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. |
|---|---|
1.4 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Chateau Shiozawa 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 Chateau Shiozawa at the specific elevation of 394 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Chateau Shiozawa. 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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