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Koshi Kogen Weather (Next 3 days): The snow forecast for Koshi Kogen is: Heavy rain (total 23.0mm), heaviest during Mon afternoon. Later becoming colder with a dusting of snow on Tue morning. Freeze-thaw conditions (max 9°C on Sun morning, min 0°C on Sat night). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue morning).
Koshi Kogen Weather (Days 4-6): Heavy rain (total 28.0mm) on Thu afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 8°C on Thu morning, min -1°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the WNW by Fri morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 1 |  | ||||
| Bottom Lift: | 0 | |
Latest snow reports near Koshi Kogen:
It is snowing heavily at Kagura. from Kagura
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  |  | |  |  |  | |  | |  | |
some clouds | clear | rain shwrs | rain shwrs | light rain | mod. rain | mod. rain | light snow | light snow | heavy rain | snow shwrs | some clouds | some clouds | cloudy | mod. rain | heavy snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | 15 | |
— | — | 1 | 1 | 2 | 6 | 9 | 3 | 1 | 19 | — | — | — | — | 9 | — | |
max °C | 1 | 9 | 9 | 5 | 8 | 7 | 5 | 2 | 2 | 3 | 4 | 4 | 2 | 8 | 7 | 1 |
min °C | 0 | 6 | 5 | 4 | 8 | 5 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 3 | -1 |
-2 | 4 | 3 | 2 | 6 | 0 | -1 | 1 | 2 | 2 | 2 | 0 | 0 | 3 | 1 | -7 | |
68 | 65 | 68 | 77 | 69 | 73 | 75 | 94 | 99 | 87 | 95 | 78 | 77 | 77 | 78 | 98 | |
1650 | 1400 | 1550 | 1700 | 1750 | 1200 | 800 | 650 | 600 | 950 | 600 | 1100 | 1200 | 1450 | 1500 | 350 | |
 | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — |
 | — | — | 4:25 | — | — | 4:25 | — | — | 4:25 | — | — | 4:25 | — | — | 4:25 | — |
Heavy rain (total 23.0mm), heaviest during Mon afternoon. Later becoming colder with a dusting of snow on Tue morning. Freeze-thaw conditions (max 9°C on Sun morning, min 0°C on Sat night). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue morning).
Heavy rain (total 28.0mm) on Thu afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 8°C on Thu morning, min -1°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the WNW by Fri morning).
Latest snow reports near Koshi Kogen:
It is snowing heavily at Kagura. from Kagura
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 30 cm |
| Last snowfall: | 5 Dec 2025 |
| Snow Alerts | Create Alert |
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. |
The above table gives the weather forecast for Koshi Kogen at the specific elevation of 340 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Koshi Kogen. 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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