Average annual temperature is 15.0 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -7.1 °C
Number of sunny days: 142 days
Number of rainy days: 211 days
Number of snow days: 12 days
Look at detailed online map of Kōtachi
* Weather data for Kōtachi 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) | 15.1 | 15.1 | 21.9 | 25.0 | 29.5 | 29.5 | 35.3 | 35.4 | 32.3 | 25.4 | 25.8 | 19.3 |
| Average daytime temperature (°C) | 7.6 | 9.0 | 15.9 | 18.3 | 22.6 | 26.0 | 30.4 | 31.8 | 29.0 | 21.3 | 16.2 | 10.3 |
| Average temperature (°C) | 3.3 | 4.4 | 10.0 | 13.0 | 17.4 | 21.3 | 26.1 | 27.0 | 24.2 | 15.8 | 11.2 | 5.9 |
| Average night temperature (°C) | 0.2 | 0.6 | 5.1 | 8.5 | 13.3 | 17.6 | 22.6 | 23.6 | 20.9 | 11.7 | 7.3 | 2.4 |
| Absolute minimum temperature (°C) | -7.1 | -3.8 | -1.4 | 2.9 | 6.7 | 11.1 | 18.9 | 21.2 | 16.2 | 7.3 | 1.6 | -3.9 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.3 | 6.1 | 8.1 | 7.7 | 8.5 | 7.7 | 9.0 | 9.5 | 8.3 | 8.2 | 7.2 | 5.9 |
| Precipitation (mm) | 59 | 66 | 75 | 204 | 233 | 201 | 175 | 178 | 101 | 31 | 47 | 73 |
| Sunny days | 12 | 10 | 20 | 15 | 14 | 9 | 8 | 2 | 5 | 20 | 16 | 11 |
| Rainy days | 13 | 16 | 11 | 15 | 17 | 21 | 23 | 29 | 25 | 11 | 14 | 16 |
| Snow days | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The largest precipitation sum in Kōtachi is at