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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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Shiga Kogen-Tannenomori Okojo at 1700 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 | |
 |  |  |  |  |  | | | | | |  | | |  | | |  | |
clear | some clouds | heavy snow | mod. snow | light snow | light snow | clear | some clouds | light snow | light snow | mod. snow | mod. snow | light snow | light snow | snow shwrs | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 26 | 6 | 5 | 2 | — | — | — | 4 | 7 | 6 | 4 | 4 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 1 | -3 | -10 | -10 | -10 | -5 | -4 | -2 | 0 | -2 | -7 | -7 | -8 | -9 | -4 | -4 | -6 |
min °C | -1 | -1 | -11 | -11 | -11 | -12 | -7 | -7 | -7 | -1 | -6 | -9 | -8 | -8 | -10 | -6 | -7 | -7 |
-6 | -8 | -22 | -22 | -20 | -19 | -12 | -12 | -13 | -6 | -15 | -17 | -16 | -16 | -15 | -9 | -10 | -12 | |
37 | 48 | 96 | 89 | 85 | 79 | 70 | 57 | 77 | 99 | 98 | 93 | 95 | 95 | 77 | 50 | 51 | 59 | |
1700 | 1950 | 650 | 0 | 0 | 0 | 450 | 1150 | 850 | 1600 | 1400 | 600 | 550 | 600 | 0 | 700 | 1100 | 700 | |
 | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 2°C on Thu morning, min -12°C on Fri night). Winds decreasing (strong winds from the NW on Fri morning, light winds from the W by Sat morning).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max 0°C on Sun morning, min -10°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Mon night).
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Latest snow reports near Shiga Kogen-Tannenomori Okojo:
21 km away from Shiga Kogen-Tannenomori Okojo
15 hours ago
Snowing heavily in Nozawa Onsen. from Nozawa Onsen
21 km away from Shiga Kogen-Tannenomori Okojo
15 hours agoSnow is falling in Nozawa Onsen. from Nozawa Onsen
21 km away from Shiga Kogen-Tannenomori Okojo
15 hours agoSnow falling in Nozawa Onsen. from Nozawa Onsen
25 km away from Shiga Kogen-Tannenomori Okojo
18 hours agoIt is snowing steadily in Naeba. from Naeba
Shiga Kogen-Tannenomori Okojo Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 2 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
Snow History
Week 2 of December has on average:
1.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.7 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
Shiga Kogen-Tannenomori Okojo Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
The above table gives the weather forecast for Shiga Kogen-Tannenomori Okojo at the specific elevation of 1700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shiga Kogen-Tannenomori Okojo. 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.
Resort name is also written as Tannenomori Okojo.
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