Average annual temperature is 16.4 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: -5.4 °C
Number of sunny days: 164 days
Number of rainy days: 196 days
Number of snow days: 5 days
Look at detailed online map of Arai
* Weather data for Arai 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) | 14.0 | 18.1 | 23.6 | 30.5 | 32.5 | 31.8 | 40.4 | 39.2 | 34.7 | 26.3 | 27.4 | 20.1 |
| Average daytime temperature (°C) | 9.3 | 11.1 | 17.8 | 21.9 | 24.2 | 27.0 | 33.9 | 34.1 | 30.3 | 22.7 | 18.1 | 12.8 |
| Average temperature (°C) | 3.6 | 5.4 | 11.8 | 15.3 | 18.4 | 22.5 | 28.3 | 28.6 | 25.8 | 17.2 | 12.0 | 6.8 |
| Average night temperature (°C) | -0.8 | 0.9 | 6.6 | 9.6 | 13.3 | 18.8 | 23.6 | 24.8 | 22.5 | 12.5 | 7.5 | 2.3 |
| Absolute minimum temperature (°C) | -5.4 | -3.9 | 0.3 | 4.0 | 6.1 | 13.0 | 20.8 | 23.1 | 15.1 | 7.7 | 0.5 | -3.2 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 8.1 | 8.3 | 9.2 | 9.2 | 7.8 | 9.9 | 10.3 | 8.7 | 8.8 | 8.0 | 7.9 |
| Precipitation (mm) | 13 | 38 | 105 | 67 | 173 | 308 | 126 | 143 | 199 | 93 | 71 | 17 |
| Sunny days | 20 | 18 | 16 | 16 | 15 | 6 | 8 | 2 | 3 | 17 | 20 | 23 |
| Rainy days | 7 | 9 | 15 | 14 | 16 | 24 | 23 | 29 | 27 | 14 | 10 | 8 |
| Snow days | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Arai is at