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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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Seythenex at 1501 m altitude
Issued by Snow-Forecast.com at: 6 pm (local time) / 17 Dec 2025
Now
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | | |  |  | | |  | |  | | | |  | |
clear | clear | clear | clear | clear | clear | cloudy | light rain | cloudy | cloudy | cloudy | cloudy | some clouds | cloudy | cloudy | cloudy | snow shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | |
max °C | 4 | 4 | 5 | 6 | 5 | 6 | 6 | 4 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 4 | 2 |
min °C | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 4 | 5 | 4 | 2 | 2 | 2 | -1 |
4 | 3 | 2 | 3 | 3 | 5 | 4 | 3 | 5 | 4 | 3 | 3 | 3 | 0 | 0 | 1 | -1 | |
71 | 65 | 54 | 51 | 43 | 44 | 42 | 66 | 68 | 59 | 62 | 64 | 70 | 61 | 57 | 61 | 65 | |
2150 | 2200 | 2300 | 2550 | 2450 | 2400 | 2450 | 2300 | 2350 | 2450 | 2350 | 2400 | 2300 | 2000 | 2050 | 2150 | 1750 | |
 | — | — | 8:10 | — | — | 8:11 | — | — | 8:11 | — | — | 8:11 | — | — | 8:11 | — | — |
 | 4:51 | — | — | 4:51 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — |
Next 0-3 days weather summary:
Light rain (total 5.0mm), mostly falling on Fri night. Mild temperatures (max 6°C on Thu afternoon, min 4°C on Wed afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Mostly dry. Freeze-thaw conditions (max 6°C on Sat afternoon, min -1°C on Mon night). Wind will be generally light.
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Latest snow reports near Seythenex:
49 km away from Seythenex
11 hours ago
It is snowing steadily at altitude in Chamonix. from Chamonix
25 km away from Seythenex
14 hours ago
Ouverture le 20 décembre Opening on December 20th from La Giettaz en Aravis
Seythenex Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 3 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in France are reporting: powder (4) / good piste (4)
Snow History
Week 3 of December has on average:
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.1 | Powder days Fresh snow, limited sun, any wind. |
1.0 | Bluebird days Average snow, mostly sunny, light wind. |
Seythenex Forecast Snowfall
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Other resorts in France are reporting: powder (4) / good piste (4)
The above table gives the weather forecast for Seythenex at the specific elevation of 1501 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Seythenex. 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 France.
Click here to read further information on freezing levels and how we forecast our temperatures.
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