Average annual temperature is 16.7 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -3.3 °C
Number of sunny days: 142 days
Number of rainy days: 222 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) | 15.9 | 18.1 | 23.8 | 22.9 | 28.4 | 29.0 | 33.2 | 32.2 | 31.3 | 29.6 | 24.1 | 21.4 |
| Average daytime temperature (°C) | 9.4 | 10.9 | 16.0 | 18.7 | 21.3 | 25.1 | 30.0 | 30.6 | 28.6 | 22.4 | 18.3 | 13.5 |
| Average temperature (°C) | 5.7 | 7.1 | 12.1 | 15.2 | 17.8 | 21.7 | 25.8 | 26.8 | 25.2 | 18.2 | 14.6 | 9.7 |
| Average night temperature (°C) | 2.5 | 3.5 | 8.8 | 12.3 | 15.2 | 19.3 | 22.8 | 24.3 | 22.9 | 14.8 | 11.7 | 6.2 |
| Absolute minimum temperature (°C) | -3.3 | -2.3 | 2.1 | 5.4 | 9.8 | 15.3 | 20.3 | 22.8 | 18.1 | 11.6 | 4.8 | 0.2 |
| 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) | 6.5 | 7.3 | 7.7 | 8.8 | 8.4 | 7.3 | 11.1 | 11.3 | 9.3 | 8.7 | 7.1 | 7.5 |
| Precipitation (mm) | 61 | 105 | 164 | 204 | 169 | 259 | 51 | 175 | 200 | 156 | 91 | 64 |
| Sunny days | 18 | 12 | 9 | 11 | 12 | 8 | 15 | 4 | 2 | 15 | 15 | 21 |
| Rainy days | 13 | 15 | 22 | 19 | 19 | 22 | 16 | 27 | 28 | 16 | 15 | 10 |
| Snow days | 0 | 1 | 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