Average annual temperature is 14.5 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -7.9 °C
Number of sunny days: 91 days
Number of rainy days: 255 days
Number of snow days: 19 days
Look at detailed online map of Koguchi
* Weather data for Koguchi 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) | 13.1 | 14.5 | 22.9 | 25.2 | 30.5 | 28.9 | 33.9 | 37.5 | 35.3 | 25.1 | 26.1 | 17.3 |
| Average daytime temperature (°C) | 5.1 | 6.0 | 13.8 | 17.0 | 21.3 | 25.5 | 29.7 | 34.8 | 29.2 | 19.9 | 15.2 | 8.5 |
| Average temperature (°C) | 1.8 | 2.2 | 8.0 | 11.5 | 16.1 | 21.3 | 25.6 | 29.6 | 24.8 | 15.3 | 11.0 | 5.2 |
| Average night temperature (°C) | -0.7 | -1.0 | 3.2 | 7.0 | 11.6 | 17.7 | 22.0 | 25.6 | 21.6 | 11.8 | 7.8 | 2.5 |
| Absolute minimum temperature (°C) | -6.5 | -7.9 | -2.7 | 0.2 | 3.6 | 13.3 | 16.7 | 22.9 | 16.1 | 6.5 | 2.5 | -3.7 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 4.9 | 7.9 | 7.9 | 8.2 | 8.1 | 9.6 | 11.9 | 7.8 | 7.7 | 5.6 | 4.0 |
| Precipitation (mm) | 161 | 131 | 107 | 112 | 175 | 246 | 185 | 34 | 219 | 182 | 223 | 282 |
| Sunny days | 2 | 5 | 13 | 11 | 12 | 4 | 10 | 9 | 5 | 8 | 9 | 3 |
| Rainy days | 17 | 16 | 18 | 19 | 19 | 26 | 21 | 22 | 25 | 23 | 21 | 28 |
| Snow days | 12 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Koguchi during the most sunny months:
The largest precipitation sum in Koguchi is at