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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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Hiraniwa Kogen at 805 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  | | |  |  | | |  | | |  | |
light snow | snow shwrs | some clouds | some clouds | clear | some clouds | clear | cloudy | some clouds | some clouds | light rain | light snow | light snow | snow shwrs | clear | clear | some clouds | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | |
max °C | -5 | -5 | -5 | 1 | 2 | 4 | 7 | 7 | 8 | 10 | 9 | 3 | -5 | -5 | -4 | 1 | 1 | 3 |
min °C | -6 | -6 | -7 | -2 | 0 | 1 | 6 | 7 | 6 | 9 | 6 | -4 | -5 | -6 | -6 | -1 | 1 | 2 |
-15 | -14 | -16 | -7 | -4 | -4 | 1 | 2 | 1 | 5 | 1 | -12 | -13 | -12 | -11 | -1 | -2 | -3 | |
90 | 83 | 88 | 87 | 76 | 49 | 56 | 88 | 79 | 75 | 87 | 81 | 85 | 78 | 59 | 32 | 38 | 50 | |
0 | 200 | 0 | 550 | 1150 | 2400 | 2150 | 2200 | 2450 | 2750 | 2600 | 800 | 0 | 300 | 0 | 350 | 1050 | 1850 | |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:09 | — | — | 4:09 | — | — | 4:09 | — | — | 4:10 | — | — | 4:10 | — | — | 4:12 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 8°C on Sat night, min -7°C on Thu night). Winds increasing (light winds from the WSW on Fri afternoon, fresh winds from the WSW by Sat morning).
Next 4-6 days weather summary:
Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 10°C on Sun morning, min -6°C on Mon afternoon). Winds decreasing (near gales from the SW on Sun afternoon, calm by Tue morning).
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Latest snow reports near Hiraniwa Kogen:
47 km away from Hiraniwa Kogen
4 hours ago
Great skiing thanks to the recent snowfalls. Light snow falling up high. from Appi Kogen
Hiraniwa Kogen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Iwate are reporting: powder (1) / good piste (1)
Snow History
Week 3 of December has on average:
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.6 | Powder days Fresh snow, limited sun, any wind. |
1.4 | Bluebird days Average snow, mostly sunny, light wind. |
Hiraniwa Kogen Forecast Snowfall
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Other resorts in Japan - Iwate are reporting: powder (1) / good piste (1)
The above table gives the weather forecast for Hiraniwa Kogen at the specific elevation of 805 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Hiraniwa Kogen. 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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