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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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Ski Jam Katsuyama at 1320 m altitude
Issued by Snow-Forecast.com at: 8 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 | rain shwrs | some clouds | cloudy | light rain | heavy rain | light snow | clear | cloudy | clear | some clouds | some clouds | cloudy | mod. rain | heavy rain | snow shwrs | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 3 | |
— | — | — | 2 | — | — | 4 | 15 | — | — | — | — | — | — | — | 6 | 21 | — | |
max °C | 6 | 7 | 7 | 7 | 8 | 9 | 8 | 6 | 1 | -1 | 0 | 2 | 4 | 5 | 6 | 5 | 6 | 1 |
min °C | 5 | 7 | 6 | 7 | 8 | 8 | 8 | 3 | -3 | -2 | -1 | 1 | 3 | 5 | 5 | 5 | 3 | -5 |
3 | 4 | 2 | 3 | 4 | 4 | 4 | -1 | -10 | -8 | -5 | -1 | 0 | 2 | -1 | -2 | -2 | -13 | |
24 | 24 | 51 | 84 | 70 | 64 | 90 | 99 | 96 | 44 | 45 | 33 | 60 | 65 | 75 | 84 | 95 | 98 | |
2400 | 2650 | 2450 | 2550 | 2700 | 2850 | 2800 | 2550 | 1250 | 1000 | 1200 | 1700 | 2000 | 2250 | 2600 | 2600 | 2450 | 1100 | |
 | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 4:40 | — | — | 4:42 | — | — | 4:42 | — | — | 4:43 | — | — | 4:43 | — | — | 4:44 | — |
Next 0-3 days weather summary:
Heavy rain (total 21.0mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 9°C on Sat night, min -3°C on Sun night). Winds increasing (light winds from the SSW on Fri morning, fresh winds from the SSW by Fri night).
Next 4-6 days weather summary:
Heavy rain (total 27.0mm), heaviest during Wed afternoon. Later becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 6°C on Tue night, min -5°C on Wed night). Winds increasing (light winds from the SE on Mon night, gales from the SSE by Wed morning).
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Snow Radar
Latest snow reports near Ski Jam Katsuyama:
Ski Jam Katsuyama Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 16 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Fukui are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.9 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
Ski Jam Katsuyama Forecast Snowfall
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Other resorts in Japan - Fukui are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Ski Jam Katsuyama at the specific elevation of 1320 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Ski Jam Katsuyama. 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.
Visitor Reviews of Ski Jam Katsuyama
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