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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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Yachiho Kogen at 1830 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 11 Dec 2025
Now
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | |  |  | |  | | | | | | | |
clear | clear | snow shwrs | snow shwrs | some clouds | some clouds | some clouds | clear | light snow | mod. snow | snow shwrs | clear | some clouds | snow shwrs | clear | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 4 | — | — | — | — | — | 1 | 6 | 1 | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 1 | -2 | -7 | -7 | -8 | -3 | -2 | -1 | 0 | -2 | -6 | -6 | -6 | -6 | -3 | -3 | -2 |
min °C | -1 | -1 | -8 | -8 | -9 | -10 | -7 | -2 | -3 | 0 | -5 | -7 | -7 | -6 | -7 | -5 | -4 | -4 |
-7 | -9 | -16 | -17 | -17 | -17 | -13 | -7 | -10 | -5 | -13 | -15 | -14 | -12 | -13 | -10 | -9 | -9 | |
35 | 43 | 96 | 58 | 48 | 64 | 45 | 43 | 78 | 99 | 87 | 63 | 70 | 69 | 68 | 41 | 37 | 45 | |
1600 | 2000 | 1300 | 650 | 650 | 0 | 650 | 1550 | 1350 | 1750 | 1600 | 650 | 800 | 1050 | 400 | 850 | 1400 | 950 | |
 | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:32 | — | — | 4:32 | — |
Next 0-3 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 1°C on Thu morning, min -10°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, light winds from the WNW by Fri night).
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Sun morning. Temperatures will be below freezing (max 0°C on Sun morning, min -7°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun night, light winds from the W by Tue afternoon).
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Latest snow reports near Yachiho Kogen:
Yachiho Kogen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 3 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
Snow History
Week 2 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.5 | Powder days Fresh snow, limited sun, any wind. |
2.7 | Bluebird days Average snow, mostly sunny, light wind. |
Yachiho Kogen Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
The above table gives the weather forecast for Yachiho Kogen at the specific elevation of 1830 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Yachiho 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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