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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 638 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 | clear | clear | some clouds | clear | some clouds | light rain | heavy rain | light snow | light snow | light snow | clear | some clouds | clear | cloudy | light rain | heavy rain | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 2 | |
— | — | — | — | — | — | 1 | 26 | 8 | — | — | — | — | — | — | 2 | 14 | 12 | |
max °C | 10 | 10 | 10 | 14 | 13 | 12 | 13 | 10 | 4 | 0 | 0 | 3 | 8 | 8 | 10 | 10 | 9 | 4 |
min °C | 7 | 8 | 7 | 11 | 11 | 11 | 12 | 6 | 1 | 0 | 0 | 0 | 5 | 7 | 8 | 9 | 7 | 0 |
6 | 7 | 5 | 9 | 10 | 10 | 11 | 4 | -2 | -3 | -2 | 0 | 5 | 6 | 6 | 6 | 5 | -3 | |
39 | 51 | 40 | 71 | 64 | 56 | 75 | 99 | 95 | 93 | 82 | 59 | 43 | 57 | 64 | 69 | 84 | 95 | |
2250 | 2600 | 2500 | 2500 | 2700 | 2750 | 2850 | 2500 | 1150 | 650 | 700 | 850 | 1950 | 2150 | 2500 | 2750 | 2400 | 1000 | |
 | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 4:35 | — | — | 4:36 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — |
Next 0-3 days weather summary:
Heavy rain (total 35.0mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Sun night. Very mild (max 14°C on Sat morning, min 1°C on Sun night). Wind will be generally light.
Next 4-6 days weather summary:
Heavy rain (total 28.0mm), heaviest during Wed afternoon. Later becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 10°C on Tue night, min 0°C on Mon morning). Wind will be generally light.
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Latest snow reports near Unazuki Onsen:
27 km away from Unazuki Onsen
25 hours ago
There is heavy snow falling at Hakuba Cortina Kokusai. from Hakuba Cortina Kokusai
26 km away from Unazuki Onsen
41 hours agoSnow falling heavily in Hakuba 47. from Hakuba 47
Unazuki Onsen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| 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:
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.2 | 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 638 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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