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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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Iizuna Kogen at 1080 m altitude
Issued by Snow-Forecast.com at: 2 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 | clear | clear | some clouds | light rain | mod. rain | light snow | light snow | snow shwrs | clear | cloudy | some clouds | cloudy | light rain | light rain | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | 2 | |
— | — | — | — | — | — | 2 | 8 | — | — | — | — | — | — | — | 1 | 5 | 4 | |
max °C | 4 | 5 | 2 | 7 | 8 | 6 | 7 | 7 | 1 | -2 | -3 | -3 | 3 | 4 | 1 | 3 | 3 | 3 |
min °C | 1 | 2 | 1 | 5 | 5 | 5 | 7 | 4 | -2 | -3 | -5 | -5 | 0 | 0 | 0 | 2 | 3 | -2 |
-2 | -2 | -3 | 2 | 2 | 1 | 3 | 0 | -7 | -8 | -9 | -5 | -3 | -5 | -5 | -4 | -2 | -7 | |
45 | 47 | 47 | 83 | 80 | 81 | 93 | 98 | 98 | 93 | 88 | 60 | 46 | 42 | 65 | 67 | 94 | 98 | |
1950 | 2500 | 2450 | 2400 | 2650 | 2900 | 2800 | 2600 | 1200 | 650 | 650 | 0 | 1650 | 1850 | 2000 | 2050 | 2150 | 1150 | |
 | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 4:32 | — | — | 4:34 | — | — | 4:34 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — |
Next 0-3 days weather summary:
Moderate rain (total 10.0mm) heaviest on Sun afternoon, then becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 8°C on Sat afternoon, min -2°C on Sun night). Wind will be generally light.
Next 4-6 days weather summary:
A dusting of snow giving way to moderate rain (total 10.0mm) heaviest on Wed night. Freeze-thaw conditions (max 4°C on Tue afternoon, min -5°C on Mon afternoon). Wind will be generally light.
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Latest snow reports near Iizuna Kogen:
20 km away from Iizuna Kogen
31 minutes ago
Partly cloudy at Madarao Kogen. Just a light breeze today. Feeling cold here today. There is a dusting of fresh snow. Packed snow on piste. The off-piste has an icy crust. from Madarao Kogen
0 km away from Iizuna Kogen
18 hours ago
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
43 km away from Iizuna Kogen
18 hours agoRain and snow or hail reported from Takada at 18 metres elevation only 2 kms E of Kanayasan Ski Resort from Kanayasan
0 km away from Iizuna Kogen
20 hours agoModerate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Iizuna Kogen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 14 cm |
| Last snowfall: | 18 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
Snow History
Week 3 of December has on average:
0.7 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.2 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
Iizuna Kogen Forecast Snowfall
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Photos of Iizuna Kogen
Upload new photo Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
The above table gives the weather forecast for Iizuna Kogen at the specific elevation of 1080 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Iizuna 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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