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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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Kurumayama Kogen at 1743 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 18 Dec 2025
Now
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  |  | | |  | |  |  | | | | |  | |
clear | clear | clear | clear | rain shwrs | some clouds | some clouds | rain shwrs | light rain | light rain | light snow | snow shwrs | clear | clear | clear | some clouds | some clouds | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 1 | — | — | 1 | 1 | 2 | 2 | — | — | — | — | — | — | |
max °C | -3 | 0 | 3 | 4 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | -4 | -4 | -2 | 1 | 2 | 0 |
min °C | -4 | -3 | 1 | 3 | 3 | 4 | 5 | 5 | 6 | 5 | -3 | -4 | -5 | -5 | -1 | 0 | -1 |
-8 | -6 | -2 | -1 | -1 | -1 | 1 | 1 | 2 | 1 | -9 | -10 | -10 | -9 | -4 | -4 | -5 | |
63 | 60 | 42 | 37 | 64 | 86 | 71 | 86 | 88 | 93 | 94 | 78 | 66 | 56 | 48 | 39 | 72 | |
1250 | 1150 | 1950 | 2600 | 2400 | 2500 | 2650 | 2850 | 2900 | 2800 | 1750 | 950 | 1100 | 950 | 1450 | 2150 | 1350 | |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 4:34 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — | — | 4:37 | — |
Next 0-3 days weather summary:
Light rain (total 3.0mm), mostly falling on Fri night. Freeze-thaw conditions (max 6°C on Sat afternoon, min -4°C on Thu afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Light rain (total 4.0mm), mostly falling on Sun night. Freeze-thaw conditions (max 5°C on Sun afternoon, min -5°C on Mon afternoon). Wind will be generally light.
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Latest snow reports near Kurumayama Kogen:
5 km away from Kurumayama Kogen
21 hours ago
Rain and snow or hail reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine Ski Resort from Kirigamine
5 km away from Kurumayama Kogen
22 hours agoContinuous light rain reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine but it is forecast cold enough for snow at the ski area from Kirigamine
Kurumayama Kogen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3.0 cm |
| Last snowfall: | 17 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:
0.7 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.5 | Powder days Fresh snow, limited sun, any wind. |
3.0 | Bluebird days Average snow, mostly sunny, light wind. |
Kurumayama Kogen Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
The above table gives the weather forecast for Kurumayama Kogen at the specific elevation of 1743 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Kurumayama 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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