Average annual temperature is 15.8 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -5.1 °C
Number of sunny days: 127 days
Number of rainy days: 233 days
Number of snow days: 5 days
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) | 16.4 | 13.7 | 21.0 | 22.3 | 25.2 | 28.3 | 32.7 | 34.6 | 30.7 | 24.4 | 26.0 | 21.0 |
| Average daytime temperature (°C) | 7.9 | 9.2 | 14.6 | 16.9 | 21.0 | 24.5 | 29.5 | 30.9 | 27.8 | 20.7 | 16.2 | 10.7 |
| Average temperature (°C) | 5.4 | 6.2 | 10.5 | 13.5 | 17.4 | 21.3 | 26.0 | 27.2 | 24.2 | 17.1 | 12.6 | 7.7 |
| Average night temperature (°C) | 3.5 | 3.5 | 7.2 | 10.4 | 14.6 | 19.0 | 23.2 | 24.5 | 21.7 | 14.2 | 9.4 | 4.9 |
| Absolute minimum temperature (°C) | -5.1 | 0.0 | 0.3 | 6.0 | 7.8 | 13.8 | 19.2 | 22.2 | 17.9 | 8.4 | 2.7 | -1.5 |
| 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) | 6.3 | 6.4 | 8.2 | 8.1 | 8.5 | 8.0 | 9.3 | 10.2 | 8.9 | 8.4 | 7.3 | 5.7 |
| Precipitation (mm) | 86 | 108 | 90 | 226 | 147 | 218 | 258 | 172 | 114 | 21 | 85 | 108 |
| Sunny days | 11 | 12 | 17 | 14 | 14 | 8 | 2 | 3 | 6 | 15 | 13 | 12 |
| Rainy days | 17 | 16 | 14 | 16 | 17 | 22 | 29 | 28 | 24 | 16 | 17 | 17 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Ōi during the most sunny months:
The largest precipitation sum in Ōi is at