Average annual temperature is 14.5 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -7.5 °C
Number of sunny days: 103 days
Number of rainy days: 241 days
Number of snow days: 21 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) | 11.6 | 14.2 | 22.2 | 25.1 | 31.2 | 29.1 | 34.3 | 38.5 | 35.7 | 25.1 | 26.0 | 17.6 |
| Average daytime temperature (°C) | 4.7 | 5.2 | 13.2 | 17.7 | 21.6 | 25.5 | 30.1 | 35.3 | 29.7 | 20.4 | 15.8 | 9.6 |
| Average temperature (°C) | 1.5 | 2.2 | 7.6 | 12.2 | 16.4 | 21.1 | 26.1 | 29.6 | 24.9 | 15.3 | 11.0 | 5.0 |
| Average night temperature (°C) | -1.1 | -0.4 | 3.3 | 7.5 | 12.3 | 17.6 | 22.6 | 25.6 | 21.7 | 11.6 | 7.3 | 1.2 |
| Absolute minimum temperature (°C) | -6.8 | -4.2 | -2.0 | 1.5 | 4.8 | 11.4 | 17.7 | 23.1 | 15.1 | 7.8 | -0.2 | -7.5 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.7 | 4.7 | 7.6 | 7.9 | 8.5 | 7.5 | 9.3 | 11.4 | 8.3 | 8.5 | 6.3 | 5.2 |
| Precipitation (mm) | 351 | 275 | 118 | 149 | 195 | 268 | 206 | 28 | 210 | 127 | 262 | 306 |
| Sunny days | 3 | 5 | 15 | 12 | 12 | 4 | 8 | 14 | 6 | 10 | 9 | 5 |
| Rainy days | 18 | 13 | 16 | 18 | 19 | 26 | 23 | 17 | 24 | 21 | 21 | 25 |
| Snow days | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Arai during the most sunny months:
The largest precipitation sum in Arai is at