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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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Oze Iwakura Ski Resort at 1703 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | | | |  |  | | | | |  | | |
snow shwrs | clear | clear | clear | clear | some clouds | cloudy | clear | some clouds | cloudy | light rain | light snow | clear | clear | clear | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | |
max °C | -5 | -5 | -1 | 1 | 1 | 4 | 4 | 5 | 7 | 7 | 7 | 3 | -4 | -4 | -2 | 0 | 0 | 1 |
min °C | -6 | -5 | -4 | 0 | 1 | 3 | 4 | 5 | 6 | 7 | 5 | -4 | -5 | -5 | -4 | -2 | -1 | -1 |
-13 | -11 | -8 | -3 | -2 | 0 | 0 | 2 | 3 | 4 | 3 | -10 | -11 | -9 | -7 | -5 | -4 | -5 | |
73 | 67 | 31 | 41 | 52 | 36 | 74 | 84 | 70 | 75 | 86 | 93 | 74 | 63 | 46 | 35 | 54 | 56 | |
700 | 850 | 350 | 1600 | 2100 | 2550 | 2450 | 2600 | 2850 | 2850 | 2850 | 1650 | 850 | 950 | 650 | 1300 | 1500 | 1450 | |
 | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:28 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — | 4:30 | — | — | 4:30 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 7°C on Sat night, min -6°C on Thu morning). Wind will be generally light.
Next 4-6 days weather summary:
Light rain (total 3.0mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 7°C on Sun morning, min -5°C on Mon morning). Wind will be generally light.
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Latest snow reports near Oze Iwakura Ski Resort:
42 km away from Oze Iwakura Ski Resort
3 hours ago
It is snowing steadily in Ishiuchi Maruyama. from Ishiuchi Maruyama
Oze Iwakura Ski Resort Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 15 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Gunma are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
2.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
1.6 | Bluebird days Average snow, mostly sunny, light wind. |
Oze Iwakura Ski Resort 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 Oze Iwakura Ski Resort at the specific elevation of 1703 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Oze Iwakura Ski Resort. 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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