Average annual temperature is 15.6 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -7.4 °C
Number of sunny days: 149 days
Number of rainy days: 216 days
Look at detailed online map of Koarai
* Weather data for Koarai 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) | 20.5 | 19.3 | 24.2 | 25.9 | 32.0 | 32.1 | 32.5 | 34.5 | 32.4 | 26.3 | 25.0 | 21.5 |
| Average daytime temperature (°C) | 11.0 | 12.5 | 17.1 | 19.6 | 23.2 | 26.0 | 30.5 | 28.8 | 29.0 | 22.2 | 18.4 | 12.8 |
| Average temperature (°C) | 4.5 | 6.8 | 11.3 | 14.3 | 18.2 | 21.6 | 25.9 | 25.2 | 24.2 | 16.0 | 12.0 | 7.1 |
| Average night temperature (°C) | -0.3 | 2.4 | 6.5 | 9.5 | 13.8 | 18.0 | 22.6 | 22.8 | 20.8 | 10.8 | 7.1 | 2.6 |
| Absolute minimum temperature (°C) | -7.4 | -2.5 | -3.7 | -0.4 | 7.0 | 12.0 | 19.3 | 20.8 | 16.9 | 3.9 | -0.9 | -5.3 |
| 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 | 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) | 7.7 | 6.8 | 7.7 | 7.8 | 8.2 | 6.3 | 9.7 | 7.5 | 9.4 | 8.2 | 8.6 | 7.1 |
| Precipitation (mm) | 64 | 143 | 177 | 189 | 180 | 516 | 130 | 771 | 117 | 78 | 31 | 89 |
| Sunny days | 21 | 16 | 15 | 15 | 11 | 7 | 2 | 3 | 0 | 20 | 20 | 19 |
| Rainy days | 10 | 12 | 16 | 15 | 20 | 23 | 29 | 28 | 30 | 11 | 10 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koarai is at