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Koumi Riekkusu Ski Valley at 1780 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 17 Sep 2025
Now
Wed 17 | Thursday 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 | AM | PM | night | |
 |  |  |  |  |  | | | | | | | | | | | | | |  | |
rain shwrs | rain shwrs | some clouds | risk thun- der | light rain | light rain | light rain | light rain | light rain | rain shwrs | rain shwrs | some clouds | light rain | light rain | light rain | light rain | light rain | light rain | light rain | cloudy | |
km/h | ||||||||||||||||||||
Snow map |  |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
1 | 1 | — | 2 | 4 | 3 | 4 | 5 | 2 | 3 | 1 | — | 1 | 4 | 2 | 2 | 1 | 1 | 2 | — | |
max°C | 22 | 19 | 20 | 19 | 14 | 12 | 12 | 12 | 13 | 15 | 14 | 13 | 13 | 11 | 10 | 9 | 8 | 10 | 10 | 9 |
min°C | 20 | 17 | 18 | 16 | 12 | 12 | 12 | 11 | 12 | 14 | 11 | 10 | 12 | 9 | 9 | 9 | 8 | 8 | 9 | 8 |
20 | 16 | 17 | 15 | 12 | 12 | 12 | 10 | 10 | 13 | 10 | 9 | 12 | 9 | 9 | 9 | 7 | 7 | 8 | 8 | |
57 | 79 | 70 | 68 | 97 | 96 | 96 | 98 | 98 | 86 | 88 | 82 | 72 | 97 | 90 | 90 | 94 | 86 | 87 | 94 | |
4900 | 4950 | 4850 | 4600 | 4500 | 4400 | 4400 | 4450 | 4550 | 4600 | 4300 | 4350 | 3850 | 3650 | 3800 | 3600 | 3500 | 3500 | 3400 | 3500 | |
 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — |
 | 5:51 | — | — | 5:50 | — | — | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — | 5:44 | — | — | 5:42 | — |
Next 0-3 days weather summary:
Heavy rain (total 22.0mm), heaviest during Fri afternoon. Warm (max 22°C on Wed afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the W on Thu morning, calm by Fri morning).
Next 4-6 days weather summary:
Moderate rain (total 15.0mm), heaviest on Sat afternoon. Very mild (max 15°C on Sat afternoon, min 8°C on Mon night). Winds decreasing (fresh winds from the WSW on Sat afternoon, calm by Sun afternoon).
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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: | 15 Apr 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of September has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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 (0) / good piste (0)
The above table gives the weather forecast for Koumi Riekkusu Ski Valley at the specific elevation of 1780 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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The Koumi Riekkusu Ski Valley skiing weather widget is available to embed on external websites free of charge. It provides a daily summary of our Koumi Riekkusu Ski Valley snow forecast and current weather conditions. Simply go to the feed configuration page and follow the 3 simple steps to grab the custom html code snippet and paste it into your own site. You can choose the snow forecast elevation (summit, mid-mountain or bottom lift) and metric/imperial units for the snow forecast feed to suit your own website…. Click here to get the code.
View detailed snow forecast for Koumi Riekkusu Ski Valley at:
snow-forecast.com
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