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Japan Weekly Snow Roundup #292
Weekly Snow News for Japan, updated 10 December 2025: early-season bases deepen rapidly as Siberian air drives repeated snow across Hokkaido and Honshu
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Okunakayama Kōgen at 800 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 11 Dec 2025
Now
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  |  | | | | |  | | | | |
mod. snow | mod. snow | snow shwrs | snow shwrs | snow shwrs | snow shwrs | cloudy | cloudy | light snow | light snow | mod. snow | light snow | snow shwrs | light snow | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
6 | 9 | 1 | 1 | — | — | — | — | 1 | 2 | 9 | 4 | — | 1 | 2 | 4 | 6 | |
5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | -4 | -10 | -10 | -8 | -5 | -5 | -2 | -1 | -1 | -1 | -3 | -6 | -5 | -1 | -1 | 0 |
min °C | 0 | -11 | -10 | -10 | -9 | -6 | -7 | -6 | -1 | -1 | -1 | -5 | -6 | -5 | -3 | -1 | -4 |
-5 | -22 | -21 | -21 | -19 | -14 | -13 | -11 | -6 | -8 | -4 | -15 | -16 | -14 | -9 | -7 | -11 | |
91 | 93 | 82 | 83 | 82 | 83 | 79 | 62 | 95 | 98 | 98 | 94 | 83 | 92 | 94 | 98 | 98 | |
1200 | 0 | 0 | 0 | 0 | 0 | 200 | 0 | 450 | 650 | 550 | 400 | 0 | 0 | 300 | 600 | 650 | |
 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | 4:08 | — | — | 4:08 | — | — | 4:08 | — | — | 4:09 | — | — | 4:09 | — | — | 4:09 | — |
Next 0-3 days weather summary:
Mild at first with light rain (total 5.0mm) on Thu afternoon followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 2°C on Thu afternoon, min -11°C on Thu night). Winds decreasing (strong winds from the SW on Thu afternoon, light winds from the SW by Sat night).
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Sun night. Temperatures will be below freezing (max 0°C on Tue night, min -6°C on Mon afternoon). Mainly near gales.
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Latest snow reports near Okunakayama Kōgen:
46 km away from Okunakayama Kōgen
10 hours ago
Continuous light snow reported from Morioka at 241 metres elevation 8 kms ENE of Morioka Highland Ski Resort from Morioka Highland
Okunakayama Kōgen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 11 cm |
| Last snowfall: | 10 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Iwate are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
1.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
1.5 | Bluebird days Average snow, mostly sunny, light wind. |
Okunakayama Kōgen Forecast Snowfall
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Other resorts in Japan - Iwate are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Okunakayama Kōgen at the specific elevation of 800 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Okunakayama Kōgen. 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.
Resort name is also written as Okunakayama Kogen.
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