Average annual temperature is 9.5 °C
Absolute maximum temperature: 28.5 °C
Absolute minimum temperature: -16.5 °C
Number of sunny days: 113 days
Number of rainy days: 227 days
Number of snow days: 25 days
Look at detailed online map of Kōshū Shi
* Weather data for Kōshū Shi Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 10.3 | 9.4 | 17.4 | 20.7 | 24.3 | 25.2 | 28.5 | 27.1 | 26.2 | 20.6 | 18.5 | 14.8 |
| Average daytime temperature (°C) | 2.5 | 3.8 | 9.8 | 13.6 | 16.3 | 19.9 | 24.7 | 24.6 | 22.8 | 14.9 | 11.3 | 6.3 |
| Average temperature (°C) | -2.2 | -1.1 | 4.7 | 8.3 | 11.4 | 16.0 | 20.3 | 20.4 | 18.4 | 9.8 | 6.2 | 1.5 |
| Average night temperature (°C) | -5.7 | -5.2 | 0.5 | 3.6 | 7.4 | 12.9 | 16.4 | 16.8 | 15.1 | 5.8 | 2.1 | -2.5 |
| Absolute minimum temperature (°C) | -16.5 | -16.2 | -6.7 | -2.8 | -0.4 | 7.6 | 12.6 | 14.8 | 8.8 | -0.5 | -4.2 | -13.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 8.0 | 8.2 | 9.3 | 9.0 | 7.4 | 9.9 | 11.0 | 9.3 | 8.7 | 7.9 | 7.9 |
| Precipitation (mm) | 47 | 74 | 166 | 113 | 291 | 386 | 92 | 132 | 180 | 142 | 86 | 42 |
| Sunny days | 15 | 15 | 8 | 9 | 10 | 2 | 3 | 1 | 3 | 10 | 18 | 19 |
| Rainy days | 4 | 5 | 22 | 21 | 21 | 28 | 28 | 30 | 27 | 21 | 11 | 9 |
| Snow days | 12 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Kōshū Shi during the most sunny months:
The largest precipitation sum in Kōshū Shi is at