Average annual temperature is 13.3 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -10.3 °C
Number of sunny days: 147 days
Number of rainy days: 215 days
Number of snow days: 3 days
Look at detailed online map of Ōkawachi
* Weather data for Ōkawachi 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) | 18.0 | 14.9 | 19.2 | 22.6 | 26.9 | 28.1 | 29.9 | 31.7 | 29.6 | 25.2 | 23.0 | 16.4 |
| Average daytime temperature (°C) | 7.6 | 10.0 | 14.7 | 17.0 | 21.0 | 23.6 | 27.0 | 26.6 | 26.4 | 19.8 | 15.1 | 9.6 |
| Average temperature (°C) | 2.1 | 4.7 | 9.2 | 11.9 | 16.0 | 19.3 | 23.0 | 23.0 | 21.7 | 13.8 | 9.6 | 4.4 |
| Average night temperature (°C) | -2.0 | 0.4 | 4.8 | 7.6 | 11.8 | 16.1 | 20.2 | 20.5 | 18.3 | 9.2 | 5.3 | 0.6 |
| Absolute minimum temperature (°C) | -10.3 | -6.1 | -5.4 | -2.2 | 5.6 | 10.6 | 17.2 | 18.1 | 15.1 | 3.1 | -3.6 | -8.6 |
| 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) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.5 | 6.8 | 7.5 | 7.7 | 8.3 | 6.2 | 9.3 | 7.9 | 9.3 | 8.4 | 8.5 | 6.6 |
| Precipitation (mm) | 73 | 140 | 149 | 227 | 210 | 483 | 184 | 616 | 72 | 73 | 36 | 84 |
| Sunny days | 20 | 16 | 16 | 15 | 11 | 8 | 1 | 1 | 1 | 20 | 21 | 17 |
| Rainy days | 9 | 12 | 15 | 15 | 20 | 22 | 30 | 30 | 29 | 11 | 9 | 13 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Ōkawachi is at