Average annual temperature is 16.1 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -4.4 °C
Number of sunny days: 126 days
Number of rainy days: 234 days
Number of snow days: 5 days
Look at detailed online map of Aiba
* Weather data for Aiba 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) | 13.2 | 13.1 | 18.7 | 21.8 | 26.3 | 29.2 | 33.3 | 33.5 | 32.7 | 25.6 | 23.5 | 16.7 |
| Average daytime temperature (°C) | 7.0 | 8.0 | 13.4 | 16.7 | 20.8 | 24.4 | 30.1 | 30.9 | 28.7 | 20.5 | 15.7 | 10.7 |
| Average temperature (°C) | 4.5 | 5.3 | 10.0 | 13.0 | 17.5 | 21.9 | 27.0 | 28.0 | 25.9 | 17.8 | 13.1 | 8.2 |
| Average night temperature (°C) | 2.1 | 3.0 | 7.0 | 10.1 | 14.7 | 19.4 | 24.5 | 25.9 | 23.7 | 15.5 | 10.7 | 5.7 |
| Absolute minimum temperature (°C) | -4.4 | -0.3 | 1.1 | 6.2 | 8.6 | 12.6 | 21.7 | 24.7 | 19.8 | 11.2 | 5.1 | 0.6 |
| 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) | 6.4 | 6.3 | 8.3 | 7.9 | 9.1 | 7.0 | 9.7 | 10.0 | 9.7 | 8.7 | 7.5 | 6.8 |
| Precipitation (mm) | 113 | 78 | 117 | 245 | 246 | 298 | 165 | 170 | 130 | 82 | 94 | 80 |
| Sunny days | 5 | 9 | 17 | 15 | 15 | 7 | 8 | 4 | 8 | 16 | 11 | 11 |
| Rainy days | 25 | 16 | 14 | 15 | 16 | 23 | 23 | 27 | 22 | 15 | 19 | 19 |
| Snow days | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Aiba is at