This 16-day snow and weather forecast for Koshi Kogen Ski Area provides a detailed outlook on upcoming snowfall, temperature trends, wind conditions, and freezing levels. Use this long-range forecast to plan ski days, powder hunts, and travel decisions with confidence as mountain weather patterns evolve over the coming weeks.
37.3161, 138.8844
| Variable | Days Sep 12–Sep 19 · register free | |||||||||||||||||||||||
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| Sunrise | 05:04 | 05:05 | 05:06 | 05:07 | 05:07 | 05:08 | 05:09 | 05:10 | 05:11 | 05:12 | 05:12 | 05:13 | 05:14 | 05:15 | 05:16 | 05:17 | 05:17 | 05:18 | 05:19 | 05:20 | 05:21 | 05:22 | 05:22 |
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Sep 12 – Sep 19
8 more days beyond your 23-day preview
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| Sunset | 18:30 | 18:29 | 18:28 | 18:26 | 18:25 | 18:23 | 18:22 | 18:21 | 18:19 | 18:18 | 18:16 | 18:15 | 18:14 | 18:12 | 18:11 | 18:09 | 18:08 | 18:06 | 18:05 | 18:03 | 18:02 | 18:00 | 17:59 | |
| Rain Sum (mm) | - | 0.8 | - | - | - | - | 27.9 | 23.4 | 5.0 | 30.8 | 0.1 | - | - | 1.7 | 36.6 | - | - | 11.2 | 15.0 | 2.9 | 0.7 | - | 0.3 | |
| Snowfall Sum (cm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
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| Precipitation Sum (mm) | 0.1 | 10.8 | 7.2 | 1.0 | 0.5 | 2.7 | 36.0 | 30.6 | 5.1 | 32.7 | 9.2 | 7.2 | 5.0 | 17.6 | 40.6 | 0.6 | - | 11.2 | 15.1 | 4.1 | 4.1 | - | 0.3 | |
| Max Temperature (°C) | 31 | 28 | 26 | 29 | 32 | 33 | 30 | 20 | 22 | 23 | 29 | 30 | 30 | 29 | 21 | 22 | 24 | 26 | 22 | 25 | 21 | 24 | 23 | |
| Min Temperature (°C) | 21 | 20 | 19 | 20 | 22 | 21 | 19 | 19 | 17 | 17 | 21 | 20 | 21 | 21 | 18 | 16 | 17 | 18 | 17 | 19 | 15 | 16 | 17 | |
| Max Wind Gusts (km/h) | 7 | 9 | 7 | 12 | 14 | 17 | 28 | 23 | 8 | 16 | 28 | 10 | 10 | 8 | 17 | 10 | 13 | 21 | 9 | 7 | 10 | 8 | 4 | |
| Max Wind Speed (km/h) | 11 | 9 | 5 | 7 | 15 | 17 | 19 | 14 | 7 | 9 | 14 | 10 | 8 | 8 | 11 | 9 | 10 | 12 | 7 | 10 | 9 | 7 | 4 | |
| Dominant Wind Direction (°) | ||||||||||||||||||||||||
| Precipitation Probability (%) | 100 | 100 | 100 | 100 | 65 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 84 | 19 | 94 | 81 | 55 | 78 | 71 | 71 | |
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Freezing Level
Top 442 m
Mid 375 m
Bot 307 m
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