Average annual temperature is 16.7 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 175 days
Number of rainy days: 189 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) | 14.0 | 19.4 | 24.3 | 27.7 | 31.6 | 32.7 | 40.3 | 38.5 | 36.2 | 27.7 | 26.3 | 19.7 |
| Average daytime temperature (°C) | 9.3 | 11.6 | 17.8 | 21.4 | 23.6 | 27.1 | 34.5 | 34.2 | 30.9 | 23.1 | 18.3 | 13.2 |
| Average temperature (°C) | 4.0 | 5.9 | 12.0 | 15.5 | 18.1 | 22.5 | 28.6 | 28.8 | 26.0 | 17.8 | 12.6 | 7.5 |
| Average night temperature (°C) | -0.6 | 1.1 | 7.1 | 10.6 | 13.4 | 18.9 | 23.9 | 24.9 | 22.7 | 13.1 | 8.1 | 2.6 |
| Absolute minimum temperature (°C) | -5.9 | -4.9 | 0.6 | 3.7 | 7.0 | 12.1 | 20.8 | 23.0 | 16.7 | 8.1 | 1.9 | -3.5 |
| 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 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.3 | 7.8 | 7.7 | 8.7 | 8.8 | 7.3 | 10.3 | 11.0 | 8.7 | 8.4 | 7.2 | 7.7 |
| Precipitation (mm) | 24 | 35 | 112 | 76 | 169 | 318 | 40 | 119 | 236 | 93 | 62 | 37 |
| Sunny days | 21 | 20 | 16 | 15 | 14 | 7 | 11 | 9 | 7 | 15 | 18 | 22 |
| Rainy days | 10 | 7 | 15 | 15 | 17 | 23 | 20 | 22 | 23 | 16 | 12 | 9 |
| 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