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Koumi Riekkusu Ski Valley at 1590 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 09 Dec 2025
Now
Tue 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | |  |  | |  | | | |  | |  | |
clear | clear | clear | some clouds | cloudy | some clouds | clear | light snow | snow shwrs | clear | some clouds | clear | clear | light snow | light snow | light snow | snow shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | 3 | — | — | — | — | — | — | 4 | 4 | 4 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -1 | -4 | 0 | 1 | -1 | 3 | 3 | -1 | -6 | -7 | -9 | -5 | -4 | -3 | -2 | -1 | -1 |
min °C | -4 | -4 | -3 | -1 | -1 | 0 | 0 | -7 | -7 | -9 | -10 | -8 | -5 | -5 | -3 | -2 | -5 |
-7 | -7 | -6 | -4 | -1 | -4 | -6 | -14 | -14 | -16 | -17 | -14 | -7 | -10 | -7 | -5 | -15 | |
50 | 76 | 45 | 41 | 46 | 32 | 33 | 96 | 63 | 50 | 82 | 55 | 48 | 76 | 97 | 97 | 88 | |
1450 | 850 | 1200 | 1700 | 1350 | 1650 | 1950 | 1300 | 550 | 600 | 0 | 450 | 1000 | 850 | 1100 | 1100 | 1250 | |
 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — |
 | 4:30 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — |
Next 0-3 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 3°C on Thu morning, min -7°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the SW by Thu night).
Next 4-6 days weather summary:
A moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max -1°C on Sun afternoon, min -10°C on Fri night). Winds increasing (calm on Sat afternoon, strong winds from the WSW by Sun night).
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Snow Radar
Latest snow reports near Koumi Riekkusu Ski Valley:
Koumi Riekkusu Ski Valley Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 25 Nov 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:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.3 | Powder days Fresh snow, limited sun, any wind. |
1.8 | Bluebird days Average snow, mostly sunny, light wind. |
Koumi Riekkusu Ski Valley 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 Koumi Riekkusu Ski Valley at the specific elevation of 1590 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Koumi Riekkusu Ski 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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