Average annual temperature is 17.2 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 164 days
Number of rainy days: 200 days
Number of snow days: 1 day
Look at detailed online map of Koito-ōyatsu
* Weather data for Koito-ōyatsu 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) | 16.0 | 18.7 | 23.5 | 25.0 | 29.6 | 30.0 | 36.5 | 34.3 | 34.5 | 31.3 | 25.2 | 22.5 |
| Average daytime temperature (°C) | 9.5 | 11.1 | 16.9 | 19.9 | 22.3 | 26.3 | 31.9 | 32.8 | 30.0 | 22.5 | 18.6 | 13.5 |
| Average temperature (°C) | 5.3 | 7.0 | 12.4 | 15.7 | 18.1 | 22.4 | 27.2 | 28.2 | 26.2 | 18.5 | 14.7 | 9.4 |
| Average night temperature (°C) | 1.8 | 3.5 | 8.9 | 12.4 | 14.9 | 19.4 | 23.8 | 25.1 | 23.4 | 15.1 | 11.6 | 5.8 |
| Absolute minimum temperature (°C) | -3.9 | -3.4 | 2.0 | 6.4 | 9.3 | 16.0 | 21.4 | 23.8 | 19.1 | 11.2 | 4.5 | 0.3 |
| 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) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 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) | 6.7 | 7.1 | 7.7 | 8.9 | 8.6 | 7.3 | 11.0 | 11.4 | 9.5 | 8.7 | 7.3 | 7.7 |
| Precipitation (mm) | 43 | 76 | 149 | 121 | 153 | 266 | 50 | 93 | 171 | 139 | 73 | 45 |
| Sunny days | 17 | 14 | 11 | 14 | 13 | 6 | 18 | 9 | 8 | 16 | 15 | 23 |
| Rainy days | 13 | 14 | 20 | 16 | 18 | 24 | 13 | 22 | 22 | 15 | 15 | 8 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Koito-ōyatsu during the most sunny months:
The largest precipitation sum in Koito-ōyatsu is at