Average annual temperature is 16.1 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -4.6 °C
Number of sunny days: 155 days
Number of rainy days: 208 days
Number of snow days: 2 days
Look at detailed online map of Aso
* Weather data for Aso 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) | 15.8 | 19.2 | 23.4 | 25.8 | 27.8 | 31.7 | 35.9 | 33.4 | 32.0 | 27.2 | 24.9 | 20.4 |
| Average daytime temperature (°C) | 9.5 | 10.8 | 16.5 | 18.9 | 22.1 | 25.7 | 31.5 | 30.2 | 29.1 | 22.0 | 17.4 | 12.8 |
| Average temperature (°C) | 5.2 | 6.3 | 11.4 | 14.3 | 18.1 | 22.0 | 26.7 | 26.4 | 24.9 | 16.9 | 12.2 | 7.8 |
| Average night temperature (°C) | 2.0 | 2.8 | 6.9 | 9.9 | 14.4 | 18.9 | 22.8 | 23.8 | 21.7 | 12.9 | 7.8 | 3.9 |
| Absolute minimum temperature (°C) | -4.6 | -1.2 | 1.2 | 4.6 | 7.8 | 14.6 | 19.7 | 22.3 | 18.3 | 8.6 | 1.8 | -1.4 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 14.0 | 14.4 | 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) | 7.5 | 7.2 | 8.2 | 8.3 | 8.9 | 6.8 | 11.0 | 9.4 | 9.3 | 8.5 | 7.9 | 7.6 |
| Precipitation (mm) | 53 | 35 | 135 | 247 | 290 | 525 | 68 | 480 | 161 | 159 | 96 | 61 |
| Sunny days | 18 | 17 | 14 | 13 | 14 | 9 | 8 | 0 | 5 | 17 | 20 | 20 |
| Rainy days | 11 | 11 | 17 | 17 | 17 | 21 | 23 | 31 | 25 | 14 | 10 | 11 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Aso during the most sunny months:
The largest precipitation sum in Aso is at