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Japan Weekly Snow Roundup #292
Weekly Snow News for Japan, updated 10 December 2025: early-season bases deepen rapidly as Siberian air drives repeated snow across Hokkaido and Honshu
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Iwakisan Hyakuzawa at 565 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 11 Dec 2025
Now
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  | | | | | | | | | | |
mod. snow | mod. snow | light snow | light snow | light snow | light snow | some clouds | cloudy | light snow | light snow | mod. snow | light snow | light snow | light snow | light snow | light snow | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
9 | 7 | 3 | 1 | 2 | — | — | — | — | 2 | 8 | 2 | — | — | — | 2 | 2 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | -4 | -8 | -8 | -6 | -4 | -3 | -1 | 1 | 1 | 1 | -2 | -3 | -1 | 0 | 1 | 1 |
min °C | -3 | -8 | -8 | -8 | -7 | -4 | -5 | -5 | 0 | 0 | 0 | -3 | -3 | -3 | 0 | 1 | -4 |
-10 | -18 | -18 | -18 | -16 | -11 | -10 | -10 | -4 | -6 | -4 | -12 | -12 | -11 | -6 | -4 | -11 | |
97 | 86 | 83 | 79 | 79 | 72 | 73 | 66 | 84 | 97 | 99 | 89 | 75 | 78 | 83 | 96 | 77 | |
700 | 0 | 0 | 0 | 0 | 0 | 200 | 0 | 500 | 800 | 550 | 300 | 150 | 250 | 550 | 650 | 600 | |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 4:10 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — | — | 4:12 | — | — | 4:12 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Thu afternoon. Freeze-thaw conditions (max 1°C on Thu afternoon, min -8°C on Thu night). Winds decreasing (strong winds from the NW on Fri afternoon, light winds from the S by Sat night).
Next 4-6 days weather summary:
A moderate fall of snow, heaviest on Sun night. Freeze-thaw conditions (max 1°C on Sun afternoon, min -5°C on Wed morning). Mainly strong winds.
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Latest snow reports near Iwakisan Hyakuzawa:
41 km away from Iwakisan Hyakuzawa
1 hour ago
Continuous light rain reported from Aomori at 242 metres elevation 9 kms NW of Moya Hills but it is forecast cold enough for snow at the ski area from Moya Hills
Iwakisan Hyakuzawa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 7 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hyakuzawa are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.2 | Powder days Fresh snow, limited sun, any wind. |
0.5 | Bluebird days Average snow, mostly sunny, light wind. |
Iwakisan Hyakuzawa Forecast Snowfall
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Other resorts in Japan - Hyakuzawa are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Iwakisan Hyakuzawa at the specific elevation of 565 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Iwakisan Hyakuzawa. 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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