Average annual temperature is 15.7 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: -8.5 °C
Number of sunny days: 161 days
Number of rainy days: 203 days
Number of snow days: 1 day
Look at detailed online map of Aioi
* Weather data for Aioi 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) | 17.8 | 14.1 | 20.9 | 23.3 | 25.2 | 29.9 | 33.1 | 36.0 | 33.4 | 28.1 | 24.4 | 19.1 |
| Average daytime temperature (°C) | 9.5 | 9.8 | 15.6 | 18.5 | 22.1 | 25.3 | 29.9 | 31.4 | 29.5 | 22.6 | 16.9 | 11.9 |
| Average temperature (°C) | 4.0 | 4.7 | 10.3 | 13.5 | 17.8 | 21.7 | 26.4 | 28.0 | 25.6 | 16.9 | 11.9 | 6.8 |
| Average night temperature (°C) | -0.4 | 0.4 | 5.1 | 8.5 | 13.6 | 18.3 | 23.0 | 25.1 | 22.3 | 12.0 | 7.8 | 2.6 |
| Absolute minimum temperature (°C) | -8.5 | -3.8 | -1.9 | 2.4 | 6.9 | 12.8 | 19.9 | 22.8 | 17.3 | 7.5 | 1.2 | -2.4 |
| 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 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.1 | 8.3 | 8.1 | 9.0 | 7.2 | 9.7 | 10.3 | 9.6 | 8.9 | 7.8 | 7.0 |
| Precipitation (mm) | 26 | 35 | 97 | 197 | 227 | 267 | 122 | 198 | 105 | 40 | 144 | 49 |
| Sunny days | 15 | 11 | 19 | 14 | 14 | 7 | 11 | 2 | 9 | 21 | 18 | 20 |
| Rainy days | 15 | 17 | 12 | 16 | 17 | 23 | 20 | 29 | 21 | 10 | 12 | 11 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Aioi is at