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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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Katashina Kogen at 1110 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 | |
 |  |  | |  | |  |  |  | | | | | | | | | |
clear | mod. snow | light snow | light snow | snow shwrs | clear | cloudy | light snow | light rain | light snow | mod. snow | light snow | light snow | snow shwrs | clear | clear | snow shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | 10 | 5 | 3 | 1 | — | — | — | — | 2 | 8 | 4 | 4 | 1 | — | — | — | |
— | — | — | — | — | — | — | 2 | 4 | 2 | — | — | — | — | — | — | — | |
max °C | 5 | 1 | -7 | -7 | -6 | -1 | 0 | 3 | 3 | 3 | -2 | -3 | -4 | -5 | 1 | 1 | 1 |
min °C | 2 | -6 | -7 | -8 | -8 | -4 | -2 | -2 | 3 | 0 | -4 | -4 | -4 | -5 | -1 | -1 | -1 |
-1 | -15 | -16 | -14 | -13 | -4 | -5 | -6 | 3 | -7 | -12 | -12 | -12 | -8 | -1 | -1 | -1 | |
48 | 91 | 85 | 85 | 90 | 62 | 58 | 96 | 95 | 99 | 92 | 88 | 89 | 87 | 56 | 71 | 68 | |
1850 | 900 | 0 | 0 | 0 | 500 | 1050 | 1200 | 1900 | 1600 | 650 | 550 | 550 | 0 | 900 | 1250 | 1050 | |
 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — |
 | 4:25 | — | — | 4:27 | — | — | 4:27 | — | — | 4:27 | — | — | 4:27 | — | — | 4:28 | — |
Next 0-3 days weather summary:
A light fall of snow, heaviest on Thu night. Turning milder with light rain (total 6.0mm) on Sun morning. Freeze-thaw conditions (max 5°C on Thu afternoon, min -8°C on Fri afternoon). Winds decreasing (strong winds from the NW on Thu night, calm by Sat night).
Next 4-6 days weather summary:
Mild at first with light rain (total 2.0mm) on Sun afternoon followed by colder weather and light fall of snow, heaviest on Sun night. Freeze-thaw conditions (max 3°C on Sun afternoon, min -5°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Tue afternoon).
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Latest snow reports near Katashina Kogen:
40 km away from Katashina Kogen
27 hours ago
It is snowing steadily in Naeba. from Naeba
Katashina Kogen 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 - Gunma are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.7 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
Katashina Kogen Forecast Snowfall
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Other resorts in Japan - Gunma are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Katashina Kogen at the specific elevation of 1110 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Katashina Kogen. 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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