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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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Echo Valley at 1850 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 | |
 | |  | | |  |  |  |  | | |  | | | | | | | |
clear | clear | clear | clear | clear | light rain | light rain | some clouds | cloudy | light rain | light rain | light snow | some clouds | clear | clear | some clouds | some clouds | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 2 | 2 | — | — | 1 | 1 | 1 | — | — | — | — | — | — | |
max °C | -4 | -4 | -1 | 2 | 3 | 3 | 3 | 5 | 5 | 6 | 5 | 3 | -4 | -3 | -1 | 1 | 2 | 1 |
min °C | -5 | -4 | -4 | 0 | 3 | 2 | 3 | 4 | 4 | 5 | 5 | -3 | -4 | -4 | -4 | -1 | 1 | 0 |
-11 | -9 | -8 | -4 | 0 | -3 | -2 | -1 | -1 | 0 | 0 | -9 | -10 | -8 | -8 | -4 | -2 | -4 | |
75 | 66 | 63 | 37 | 37 | 61 | 91 | 73 | 79 | 87 | 91 | 92 | 74 | 60 | 61 | 37 | 34 | 55 | |
900 | 1150 | 1050 | 1950 | 2550 | 2450 | 2450 | 2650 | 2900 | 2800 | 2850 | 2000 | 1000 | 1250 | 1100 | 1600 | 2250 | 1800 | |
 | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 4:34 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — |
Next 0-3 days weather summary:
Light rain (total 4.0mm), mostly falling on Fri night. Freeze-thaw conditions (max 5°C on Sat afternoon, min -5°C on Thu morning). Winds increasing (light winds from the W on Thu night, fresh winds from the SW by Sat night).
Next 4-6 days weather summary:
Light rain (total 3.0mm), mostly falling on Sun morning. Freeze-thaw conditions (max 6°C on Sun morning, min -4°C on Mon morning). Winds decreasing (fresh winds from the SW on Sun morning, light winds from the SW by Mon night).
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Latest snow reports near Echo Valley:
5 km away from Echo Valley
16 hours ago
Rain and snow or hail reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine Ski Resort from Kirigamine
5 km away from Echo Valley
17 hours agoContinuous light rain reported from Suwa at 762 metres elevation 7 kms SSW of Kirigamine but it is forecast cold enough for snow at the ski area from Kirigamine
Echo Valley Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3.0 cm |
| Last snowfall: | 17 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:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
2.9 | Bluebird days Average snow, mostly sunny, light wind. |
Echo Valley Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (3) / good piste (3)
The above table gives the weather forecast for Echo Valley at the specific elevation of 1850 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Echo Valley. 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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