Average annual temperature is 15.3 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -5.7 °C
Number of sunny days: 145 days
Number of rainy days: 216 days
Number of snow days: 4 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) | 15.8 | 18.5 | 23.1 | 26.3 | 29.9 | 32.3 | 36.2 | 33.6 | 31.8 | 26.5 | 24.9 | 20.1 |
| Average daytime temperature (°C) | 8.8 | 10.3 | 16.4 | 18.8 | 22.3 | 25.8 | 32.0 | 30.1 | 29.0 | 21.6 | 16.9 | 12.4 |
| Average temperature (°C) | 4.1 | 5.3 | 10.5 | 13.6 | 17.5 | 21.6 | 26.5 | 25.9 | 24.3 | 16.0 | 11.3 | 6.8 |
| Average night temperature (°C) | 0.4 | 1.2 | 5.3 | 8.8 | 13.3 | 18.0 | 22.0 | 23.2 | 20.8 | 11.6 | 6.7 | 2.6 |
| Absolute minimum temperature (°C) | -5.7 | -3.8 | -1.0 | 1.9 | 5.5 | 12.0 | 19.5 | 21.4 | 17.5 | 5.5 | 0.4 | -2.2 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 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) | 7.4 | 6.9 | 8.2 | 8.2 | 8.7 | 6.8 | 11.0 | 9.1 | 9.3 | 8.5 | 7.8 | 7.5 |
| Precipitation (mm) | 57 | 35 | 142 | 233 | 280 | 524 | 74 | 569 | 129 | 146 | 94 | 72 |
| Sunny days | 14 | 15 | 13 | 12 | 13 | 8 | 9 | 0 | 6 | 15 | 19 | 21 |
| Rainy days | 15 | 12 | 17 | 18 | 18 | 22 | 22 | 31 | 24 | 16 | 11 | 10 |
| Snow days | 2 | 1 | 1 | 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