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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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Mont Olympia at 285 m altitude
Issued by Snow-Forecast.com at: 6 pm (local time) / 18 Dec 2025
Now
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  | |  |  | |  |  | | | | |
cloudy | mod. rain | heavy rain | light snow | snow shwrs | clear | light snow | light snow | light snow | snow shwrs | some clouds | clear | some clouds | cloudy | light snow | light snow | light snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | 1 | — | — | — | 3 | 1 | — | — | — | — | — | 1 | — | — | |
— | 8 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -1 | 6 | 9 | 1 | -5 | -6 | -5 | -1 | -7 | -8 | -9 | -11 | -10 | -6 | -4 | -4 | -2 |
min °C | -3 | -2 | 5 | -3 | -9 | -8 | -6 | -3 | -7 | -9 | -13 | -13 | -11 | -9 | -5 | -5 | -4 |
-7 | -6 | -1 | -11 | -19 | -14 | -10 | -9 | -16 | -18 | -22 | -22 | -19 | -17 | -10 | -9 | -8 | |
89 | 94 | 93 | 86 | 77 | 62 | 64 | 95 | 67 | 71 | 71 | 73 | 71 | 87 | 95 | 96 | 94 | |
0 | 0 | 2400 | 400 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — |
 | 4:10 | — | — | 4:12 | — | — | 4:12 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — |
Next 0-3 days weather summary:
Moderate rain (total 19.0mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 9°C on Fri morning, min -9°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the S by Fri morning).
Next 4-6 days weather summary:
A dusting of new snow. Temperatures will be below freezing (max -2°C on Tue night, min -13°C on Sun night). Wind will be generally light.
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Snow Radar
Latest snow reports near Mont Olympia:
Mont Olympia Snow Conditions
| Top snow depth: | 46 cm |
|---|---|
| Bottom snow depth: | 46 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Canada - Quebec are reporting: powder (0) / good piste (1)
Snow History
Week 3 of December has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
1.6 | Bluebird days Average snow, mostly sunny, light wind. |
Mont Olympia Forecast Snowfall
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Other resorts in Canada - Quebec are reporting: powder (0) / good piste (1)
The above table gives the weather forecast for Mont Olympia at the specific elevation of 285 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Mont Olympia. 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 Canada.
Click here to read further information on freezing levels and how we forecast our temperatures.
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