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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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Fonna Glacier at 1201 m altitude
Issued by Snow-Forecast.com at: 6 pm (local time) / 18 Dec 2025
Now
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  | | |  |  |  | | | | | | |  | |
light snow | light snow | light snow | mod. snow | heavy snow | light snow | light snow | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
1 | 4 | 4 | 6 | 17 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | 2 | -1 | -1 | 0 | -1 | -1 | -1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
min °C | -1 | -1 | -3 | -2 | -1 | -1 | -2 | -2 | 0 | -1 | 0 | 1 | 1 | 0 | 0 | 1 | 2 |
-6 | -6 | -10 | -9 | -7 | -6 | -5 | -2 | -3 | -4 | -2 | 1 | 1 | 0 | -2 | -1 | 1 | |
92 | 88 | 95 | 98 | 98 | 99 | 97 | 91 | 59 | 59 | 53 | 61 | 62 | 69 | 51 | 34 | 32 | |
1050 | 950 | 1000 | 900 | 1100 | 1100 | 950 | 550 | 750 | 850 | 1150 | 1600 | 1650 | 1650 | 1600 | 1700 | 1900 | |
 | — | — | 9:34 | — | — | 9:34 | — | — | 9:36 | — | — | 9:36 | — | — | 9:37 | — | — |
 | 3:26 | — | 3:27 | — | — | 3:27 | — | — | 3:27 | — | — | 3:29 | — | — | 3:29 | — | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 2°C on Thu night, min -3°C on Fri morning). Winds decreasing (fresh winds from the WSW on Fri night, calm by Sat afternoon).
Next 4-6 days weather summary:
Mostly dry. Freeze-thaw conditions (max 3°C on Wed morning, min -1°C on Sun afternoon). Wind will be generally light.
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Latest snow reports near Fonna Glacier:
Fonna Glacier Snow Conditions
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | 18 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Norway are reporting: powder (0) / good piste (0)
Snow History
Week 3 of December has on average:
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
3.1 | Powder days Fresh snow, limited sun, any wind. |
0.5 | Bluebird days Average snow, mostly sunny, light wind. |
Fonna Glacier Forecast Snowfall
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Photos of Fonna Glacier
lovely conditions by Snow Forecast Admin
Opening earlier than usual on the 14th April. by Snow Forecast Admin
open for summer season with social distancing rules applied by Snow Forecast Admin
Upload new photo Other resorts in Norway are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Fonna Glacier at the specific elevation of 1201 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Fonna Glacier. 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 Norway.
Click here to read further information on freezing levels and how we forecast our temperatures.
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