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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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Hirasan at 906 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 | some clouds | some clouds | some clouds | some clouds | light rain | light rain | light rain | rain shwrs | some clouds | clear | clear | some clouds | cloudy | cloudy | heavy rain | heavy rain | snow shwrs | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 1 | 3 | 5 | 1 | — | — | — | — | — | — | 17 | 29 | 2 | |
max °C | 7 | 8 | 7 | 9 | 10 | 10 | 10 | 8 | 4 | 2 | 3 | 3 | 5 | 5 | 6 | 8 | 9 | 5 |
min °C | 6 | 6 | 6 | 8 | 9 | 9 | 9 | 6 | 1 | 1 | 3 | 2 | 4 | 5 | 5 | 7 | 7 | 0 |
4 | 3 | 2 | 6 | 6 | 6 | 6 | 1 | -6 | -6 | -2 | -1 | 2 | 0 | -1 | 1 | 3 | -8 | |
31 | 26 | 78 | 90 | 78 | 97 | 95 | 92 | 82 | 77 | 44 | 41 | 68 | 82 | 90 | 94 | 92 | 92 | |
2550 | 2650 | 2450 | 2700 | 2800 | 3100 | 2850 | 2600 | 1200 | 1000 | 1500 | 1950 | 2000 | 2000 | 2250 | 2600 | 2650 | 1300 | |
 | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 4:45 | — | — | 4:46 | — | — | 4:46 | — | — | 4:46 | — | — | 4:47 | — | — | 4:49 | — |
Next 0-3 days weather summary:
Moderate rain (total 10.0mm), heaviest on Sun morning. Very mild (max 10°C on Sat afternoon, min 1°C on Sun night). Winds increasing (light winds from the SSW on Fri morning, fresh winds from the NNW by Sun night).
Next 4-6 days weather summary:
Heavy rain (total 48.0mm), heaviest during Wed afternoon. Freeze-thaw conditions (max 9°C on Wed afternoon, min 0°C on Wed night). Winds increasing (calm on Mon night, near gales from the SE by Wed morning).
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Snow Radar
Latest snow reports near Hirasan:
Hirasan Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 14 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Shiga are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.3 | Powder days Fresh snow, limited sun, any wind. |
0.2 | Bluebird days Average snow, mostly sunny, light wind. |
Hirasan Forecast Snowfall
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Other resorts in Japan - Shiga are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Hirasan at the specific elevation of 906 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Hirasan. 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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