Average annual temperature is 23.1 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: 8.7 °C
Number of sunny days: 93 days
Number of rainy days: 272 days
Look at detailed online map of Onna
* Weather data for Onna 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) | 24.5 | 24.1 | 25.8 | 26.4 | 28.6 | 30.6 | 33.0 | 32.7 | 31.9 | 30.9 | 28.3 | 26.1 |
| Average daytime temperature (°C) | 18.9 | 20.2 | 21.6 | 23.9 | 25.5 | 28.4 | 31.1 | 30.2 | 30.8 | 28.4 | 24.6 | 21.3 |
| Average temperature (°C) | 16.9 | 18.1 | 19.2 | 21.6 | 23.3 | 26.4 | 28.7 | 27.8 | 28.0 | 25.4 | 22.0 | 19.1 |
| Average night temperature (°C) | 15.2 | 16.6 | 17.1 | 19.9 | 21.6 | 24.9 | 26.8 | 25.9 | 25.9 | 23.2 | 20.1 | 17.5 |
| Absolute minimum temperature (°C) | 8.7 | 13.8 | 11.7 | 14.5 | 17.2 | 22.8 | 24.5 | 24.3 | 24.2 | 18.9 | 17.1 | 12.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.8 | 13.6 | 13.1 | 12.3 | 11.5 | 10.9 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.8 | 6.7 | 8.0 | 8.8 | 8.7 | 8.8 | 11.6 | 9.4 | 10.6 | 10.0 | 8.8 | 5.1 |
| Precipitation (mm) | 77 | 50 | 125 | 99 | 149 | 268 | 121 | 772 | 90 | 70 | 94 | 239 |
| Sunny days | 15 | 10 | 5 | 11 | 11 | 6 | 0 | 0 | 1 | 13 | 11 | 10 |
| Rainy days | 16 | 18 | 26 | 19 | 20 | 24 | 31 | 31 | 29 | 18 | 19 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Onna during the most sunny months:
The largest precipitation sum in Onna is at