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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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Shiga Kogen-Kumanoyu at 1690 m altitude
Issued by Snow-Forecast.com at: 2 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 | some clouds | some clouds | some clouds | some clouds | cloudy | light snow | light snow | snow shwrs | snow shwrs | clear | cloudy | some clouds | cloudy | cloudy | light snow | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 2 | 4 | 1 | — | — | — | — | — | — | — | 4 | |
— | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 2 | 1 | 4 | 4 | 3 | 5 | 4 | -2 | -5 | -6 | -5 | 0 | -1 | -2 | 1 | 1 | 0 |
min °C | -1 | 0 | 0 | 3 | 2 | 3 | 4 | 1 | -6 | -6 | -8 | -8 | -2 | -4 | -3 | -1 | 0 | -5 |
-4 | -3 | -4 | -1 | -2 | -1 | 0 | -3 | -13 | -13 | -13 | -12 | -2 | -8 | -7 | -6 | -5 | -11 | |
38 | 47 | 27 | 79 | 78 | 77 | 90 | 99 | 89 | 81 | 79 | 39 | 39 | 54 | 66 | 75 | 91 | 94 | |
1800 | 2350 | 2550 | 2450 | 2650 | 2950 | 2800 | 2650 | 1150 | 600 | 650 | 400 | 1500 | 1450 | 1350 | 1750 | 2150 | 1100 | |
 | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 4:31 | — | — | 4:31 | — | — | 4:32 | — | — | 4:32 | — | — | 4:34 | — | — | 4:34 | — |
Next 0-3 days weather summary:
Drizzle on Sun afternoon turning to light snow on Sun afternoon. Freeze-thaw conditions (max 5°C on Sun morning, min -6°C on Sun night). Wind will be generally light.
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Wed night. Freeze-thaw conditions (max 1°C on Wed morning, min -8°C on Mon afternoon). Wind will be generally light.
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Latest snow reports near Shiga Kogen-Kumanoyu:
32 km away from Shiga Kogen-Kumanoyu
17 hours ago
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
32 km away from Shiga Kogen-Kumanoyu
19 hours agoModerate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
42 km away from Shiga Kogen-Kumanoyu
22 hours ago
It is snowing steadily in Ishiuchi Maruyama. from Ishiuchi Maruyama
Shiga Kogen-Kumanoyu Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 13 cm |
| Last snowfall: | 18 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
Snow History
Week 3 of December has on average:
1.5 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
3.2 | Powder days Fresh snow, limited sun, any wind. |
0.5 | Bluebird days Average snow, mostly sunny, light wind. |
Shiga Kogen-Kumanoyu Forecast Snowfall
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Photos of Shiga Kogen-Kumanoyu
Upload new photo Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
The above table gives the weather forecast for Shiga Kogen-Kumanoyu at the specific elevation of 1690 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shiga Kogen-Kumanoyu. 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 Shiga Kogen Kumanoyu.
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