Next 3 days weather summary:Moderate rain (total 14.0mm), heaviest on Thu night. Warm (max 27°C on Thu morning, min 16°C on Thu night). Wind will be generally light. | Days 4-6 weather summary:Some drizzle, heaviest during Sat afternoon. Warm (max 28°C on Sat morning, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  | | |  |  |  | |  | | | | |  | | |
some clouds | some clouds | some clouds | some clouds | rain shwrs | some clouds | some clouds | t-storm risk | rain shwrs | clear | clear | clear | clear | rain shwrs | some clouds | some clouds | cloudy | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 1 | — | — | 5 | 8 | — | — | — | — | 1 | — | — | — | — | |
max °C | 23 | 24 | 19 | 26 | 25 | 19 | 27 | 24 | 18 | 24 | 24 | 20 | 28 | 27 | 21 | 24 | 24 | 20 |
min °C | 21 | 21 | 17 | 23 | 22 | 18 | 24 | 18 | 16 | 20 | 22 | 19 | 25 | 24 | 19 | 23 | 22 | 18 |
21 | 21 | 17 | 23 | 22 | 18 | 24 | 18 | 16 | 20 | 22 | 19 | 25 | 24 | 19 | 23 | 22 | 18 | |
59 | 53 | 72 | 52 | 56 | 72 | 53 | 61 | 89 | 81 | 61 | 85 | 61 | 57 | 78 | 64 | 61 | 77 | |
3800 | 3950 | 3750 | 3900 | 4050 | 4100 | 4200 | 4150 | 3900 | 3950 | 4200 | 4250 | 4450 | 4450 | 4700 | 4600 | 4650 | 4650 | |
 | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:24 | — | — |
 | — | 7:06 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
SnowProGo pro and carve into:
Avalanche information: Japan Avalanche Network
Latest snow reports near Koshi Kogen:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 12 Mar 2026 |
| 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 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.
Sign up or Login to access
Upload new photo
Nearest