Average annual temperature is 17.5 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -1.6 °C
Number of sunny days: 189 days
Number of rainy days: 175 days
Number of snow days: 1 day
Look at detailed online map of Ōi
* Weather data for Ōi 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) | 14.5 | 14.6 | 16.9 | 20.0 | 23.1 | 26.6 | 30.5 | 31.5 | 29.6 | 26.5 | 23.2 | 17.5 |
| Average daytime temperature (°C) | 9.3 | 10.1 | 13.8 | 16.9 | 20.6 | 23.6 | 28.4 | 29.3 | 28.4 | 21.9 | 17.4 | 12.5 |
| Average temperature (°C) | 7.2 | 7.9 | 11.6 | 15.1 | 18.9 | 22.3 | 27.1 | 28.1 | 26.9 | 19.4 | 15.3 | 10.2 |
| Average night temperature (°C) | 4.8 | 5.6 | 9.1 | 13.0 | 17.2 | 21.1 | 25.7 | 26.8 | 25.1 | 16.8 | 12.8 | 7.7 |
| Absolute minimum temperature (°C) | -1.6 | 2.3 | 5.4 | 9.1 | 13.2 | 17.7 | 23.1 | 24.7 | 21.3 | 13.7 | 8.2 | 3.6 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 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) | 7.6 | 7.7 | 8.5 | 8.6 | 9.4 | 6.9 | 11.2 | 10.5 | 9.8 | 9.0 | 7.9 | 7.5 |
| Precipitation (mm) | 49 | 65 | 97 | 139 | 216 | 395 | 41 | 246 | 171 | 156 | 86 | 58 |
| Sunny days | 16 | 15 | 19 | 17 | 17 | 14 | 19 | 6 | 12 | 17 | 19 | 18 |
| Rainy days | 14 | 13 | 12 | 13 | 14 | 16 | 12 | 25 | 18 | 14 | 11 | 13 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Ōi during the most sunny months:
The largest precipitation sum in Ōi is at