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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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Unazuki Onsen at 499 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 | clear | clear | clear | clear | clear | some clouds | light rain | heavy rain | light snow | light snow | snow shwrs | clear | some clouds | clear | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
— | — | — | — | — | — | — | 1 | 18 | 8 | — | — | — | — | — | — | |
max °C | 4 | 10 | 11 | 9 | 14 | 14 | 12 | 14 | 10 | 5 | 2 | 1 | 3 | 7 | 8 | 8 |
min °C | 2 | 7 | 8 | 8 | 11 | 11 | 11 | 12 | 7 | 1 | 1 | 0 | 0 | 5 | 7 | 7 |
2 | 7 | 7 | 7 | 10 | 10 | 10 | 11 | 5 | -2 | -2 | -2 | 0 | 5 | 6 | 6 | |
52 | 44 | 56 | 43 | 68 | 62 | 50 | 68 | 99 | 93 | 88 | 81 | 61 | 46 | 55 | 55 | |
1200 | 2250 | 2600 | 2550 | 2500 | 2700 | 2850 | 2800 | 2400 | 1150 | 600 | 650 | 950 | 1900 | 2150 | 2400 | |
 | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — |
Next 0-3 days weather summary:
Moderate rain (total 19.0mm), heaviest on Sun afternoon. Very mild (max 14°C on Sat morning, min 2°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
A dusting of snow giving way to moderate rain (total 18.0mm) heaviest on Wed afternoon. Freeze-thaw conditions (max 10°C on Wed afternoon, min 0°C on Mon afternoon). Wind will be generally light.
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Latest snow reports near Unazuki Onsen:
27 km away from Unazuki Onsen
14 hours ago
There is heavy snow falling at Hakuba Cortina Kokusai. from Hakuba Cortina Kokusai
Unazuki Onsen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 1.0 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Toyama 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. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Unazuki Onsen Forecast Snowfall
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Other resorts in Japan - Toyama are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Unazuki Onsen at the specific elevation of 499 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Unazuki Onsen. 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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