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Koshi Kogen Weather (Next 3 days): The snow forecast for Koshi Kogen is: Heavy rain (total 37.0mm), heaviest during Tue night. Later becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 6°C on Tue afternoon, min 0°C on Mon night). Winds decreasing (strong winds from the W on Sun afternoon, calm by Tue night).
Koshi Kogen Weather (Days 4-6): A dusting of new snow. Freeze-thaw conditions (max 8°C on Fri morning, min 0°C on Wed night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 5 |  | ||||
| Bottom Lift: | 6 | |
Latest snow reports near Koshi Kogen:
It is snowing steadily at Gala Yuzawa. from Gala Yuzawa
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  | | |  |  | |  |  | | |  |  |  | | | | |
light rain | light rain | mod. rain | light rain | light rain | snow shwrs | cloudy | light rain | light snow | light snow | light snow | light snow | snow shwrs | clear | clear | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 1 | — | — | 4 | — | 1 | 1 | — | — | — | — | — | — | |
3 | 3 | 10 | 4 | 3 | — | — | 2 | 12 | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 5 | 4 | 2 | 2 | 2 | 5 | 6 | 4 | 2 | 1 | 0 | 2 | 4 | 2 | 8 | 8 | 5 |
min °C | 5 | 4 | 3 | 2 | 2 | 0 | 3 | 4 | 1 | 1 | 1 | 0 | 0 | 2 | 1 | 5 | 6 | 5 |
4 | -3 | -4 | -4 | -4 | -2 | 0 | 0 | 1 | 1 | -1 | -2 | 0 | 2 | 1 | 5 | 5 | 3 | |
94 | 87 | 88 | 83 | 75 | 92 | 70 | 71 | 95 | 98 | 99 | 98 | 94 | 53 | 66 | 53 | 56 | 53 | |
2150 | 1200 | 1000 | 750 | 700 | 600 | 950 | 1200 | 900 | 700 | 650 | 450 | 500 | 1000 | 1200 | 1850 | 2400 | 2700 | |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:27 | — | — | 4:27 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:29 | — |
Heavy rain (total 37.0mm), heaviest during Tue night. Later becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 6°C on Tue afternoon, min 0°C on Mon night). Winds decreasing (strong winds from the W on Sun afternoon, calm by Tue night).
A dusting of new snow. Freeze-thaw conditions (max 8°C on Fri morning, min 0°C on Wed night). Wind will be generally light.
Latest snow reports near Koshi Kogen:
It is snowing steadily at Gala Yuzawa. from Gala Yuzawa
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 20 cm |
| Last snowfall: | 12 Dec 2025 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.9 | 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 444 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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