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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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Gassan Glacier at 1742 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 11 Dec 2025
Now
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  | |  |  | | | | | | | | | |
cloudy | snow shwrs | heavy snow | heavy snow | heavy snow | heavy snow | light snow | light snow | cloudy | mod. snow | mod. snow | heavy snow | mod. snow | mod. snow | heavy snow | light snow | light snow | heavy snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 50 | 11 | 10 | 16 | 2 | — | — | 7 | 5 | 15 | 10 | 9 | 10 | 5 | — | 16 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -2 | -7 | -14 | -14 | -10 | -9 | -8 | -2 | -3 | -2 | -5 | -9 | -9 | -7 | -6 | -5 | -3 |
min °C | -3 | -2 | -15 | -15 | -14 | -13 | -10 | -9 | -5 | -3 | -5 | -8 | -10 | -10 | -9 | -7 | -6 | -4 |
-12 | -12 | -31 | -31 | -30 | -27 | -21 | -18 | -12 | -11 | -18 | -21 | -24 | -23 | -22 | -17 | -15 | -14 | |
76 | 58 | 98 | 98 | 96 | 84 | 83 | 92 | 33 | 96 | 98 | 97 | 97 | 92 | 83 | 87 | 88 | 99 | |
1250 | 1400 | 250 | 0 | 0 | 0 | 300 | 450 | 0 | 850 | 1300 | 1000 | 450 | 400 | 400 | 650 | 750 | 1100 | |
 | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Thu morning, min -15°C on Thu night). Winds decreasing (severe gales from the WNW on Thu night, light winds from the W by Sat afternoon).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -2°C on Sun afternoon, min -10°C on Mon morning). Mainly extremely windy.
Popular Gassan Glacier Pages
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Latest snow reports near Gassan Glacier:
Gassan Glacier Snow Conditions
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | 52 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.7 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
4.6 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
Gassan Glacier Forecast Snowfall
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Photos of Gassan Glacier
Tsukiyama ski area (Gassan) has 10m (33.3ft) snow. by Snow Forecast Admin
Tsukiyama ski area (Gassan) has 10m (33.3ft) snow. by Snow Forecast Admin
Tsukiyama ski area (Gassan) has 10m (33.3ft) snow. by Snow Forecast Admin
Upload new photo Other resorts in Japan are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Gassan Glacier at the specific elevation of 1742 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Gassan Glacier. 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.
Visitor Reviews of Gassan Glacier
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