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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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Tenzan Ski Resort at 720 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 18 Dec 2025
Now
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | |  |  |  | | |  | | | | |  | |
clear | some clouds | some clouds | some clouds | some clouds | light rain | heavy rain | rain shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | light rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 1 | 18 | 2 | 1 | — | — | — | — | — | — | 4 | |
max °C | 8 | 10 | 11 | 10 | 14 | 14 | 12 | 10 | 6 | 5 | 8 | 9 | 7 | 10 | 11 | 10 |
min °C | 7 | 8 | 9 | 10 | 11 | 13 | 11 | 8 | 5 | 4 | 5 | 7 | 6 | 7 | 9 | 9 |
6 | 6 | 7 | 8 | 9 | 11 | 9 | 5 | 1 | 0 | 1 | 4 | 5 | 5 | 7 | 6 | |
51 | 56 | 68 | 66 | 77 | 76 | 97 | 80 | 75 | 41 | 61 | 41 | 42 | 46 | 39 | 54 | |
2600 | 2800 | 2650 | 2750 | 2950 | 3000 | 3000 | 2750 | 1500 | 2100 | 1750 | 2400 | 2800 | 3050 | 3000 | 2800 | |
 | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — |
Next 0-3 days weather summary:
Heavy rain (total 22.0mm), heaviest during Sat night. Very mild (max 14°C on Sat morning, min 5°C on Sun afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Moderate rain (total 16.0mm), heaviest on Wed morning. Very mild (max 11°C on Tue afternoon, min 4°C on Sun night). Winds increasing (calm on Mon night, fresh winds from the SSW by Tue night).
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Snow Radar
Latest snow reports near Tenzan Ski Resort:
Tenzan Ski Resort Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 28 Mar 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Saga are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.2 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
Tenzan Ski Resort Forecast Snowfall
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Other resorts in Japan - Saga are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Tenzan Ski Resort at the specific elevation of 720 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Tenzan 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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