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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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Diemtigtal - Wiriehorn at 1665 m altitude
Issued by Snow-Forecast.com at: 6 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 | |
 | |  |  | |  | | | | | |  | | | | | | | |
some clouds | some clouds | clear | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | some clouds | some clouds | some clouds | cloudy | cloudy | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 3 | 2 | 1 | 4 | 3 | 1 | 4 | 3 | 3 | 3 | 2 | 1 | 0 | 0 | -1 | 1 | 0 | -1 |
min °C | 2 | 1 | 0 | 2 | 1 | 0 | 3 | 2 | 2 | 2 | 1 | -1 | 0 | -1 | -1 | 0 | -1 | -1 |
-1 | -2 | -3 | 0 | 0 | -2 | 1 | 0 | 0 | -1 | -2 | -4 | -2 | -3 | -4 | 0 | -3 | -3 | |
75 | 74 | 70 | 62 | 65 | 59 | 55 | 75 | 84 | 78 | 78 | 80 | 86 | 93 | 90 | 87 | 90 | 82 | |
2150 | 2400 | 1850 | 2200 | 2350 | 1900 | 2300 | 2250 | 2250 | 2250 | 2200 | 1700 | 1600 | 1650 | 1300 | 1550 | 1750 | 1350 | |
 | 8:07 | — | — | 8:08 | — | — | 8:10 | — | — | 8:10 | — | — | 8:11 | — | — | 8:11 | — | — |
 | — | 4:43 | — | — | 4:43 | — | — | 4:44 | — | — | 4:44 | — | — | 4:45 | — | — | 4:45 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 4°C on Fri morning, min 0°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
Mostly dry. Freeze-thaw conditions (max 3°C on Sun morning, min -1°C on Sun night). Wind will be generally light.
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Latest snow reports near Diemtigtal - Wiriehorn:
30 km away from Diemtigtal - Wiriehorn
1 hour ago
Snow quite hard but good. Best early. from Wengen
Diemtigtal - Wiriehorn Snow Conditions
| Top snow depth: | 65 cm |
|---|---|
| Bottom snow depth: | 55 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 7 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Switzerland are reporting: powder (7) / good piste (12)
Snow History
Week 3 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
Diemtigtal - Wiriehorn Forecast Snowfall
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Other resorts in Switzerland are reporting: powder (7) / good piste (12)
The above table gives the weather forecast for Diemtigtal - Wiriehorn at the specific elevation of 1665 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Diemtigtal - Wiriehorn. 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 Switzerland.
Click here to read further information on freezing levels and how we forecast our temperatures.
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