Average annual temperature is 16.4 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -4.3 °C
Number of sunny days: 183 days
Number of rainy days: 179 days
Number of snow days: 3 days
Look at detailed online map of Ōyabu
* Weather data for Ōyabu 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) | 16.7 | 13.8 | 20.9 | 22.8 | 27.3 | 30.0 | 33.5 | 35.7 | 33.3 | 28.8 | 25.6 | 19.1 |
| Average daytime temperature (°C) | 9.6 | 9.8 | 15.7 | 18.4 | 22.3 | 25.3 | 30.4 | 31.7 | 30.4 | 23.6 | 17.9 | 12.1 |
| Average temperature (°C) | 4.6 | 5.2 | 11.1 | 14.2 | 18.5 | 22.1 | 26.8 | 28.4 | 26.5 | 18.3 | 13.0 | 7.6 |
| Average night temperature (°C) | 0.5 | 0.7 | 6.5 | 10.2 | 14.9 | 19.2 | 23.6 | 25.6 | 23.0 | 13.4 | 9.0 | 3.5 |
| Absolute minimum temperature (°C) | -4.3 | -3.3 | -0.7 | 3.9 | 7.9 | 13.9 | 21.1 | 23.5 | 17.5 | 7.7 | 1.8 | -1.3 |
| 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) | 7.2 | 6.7 | 8.4 | 8.3 | 9.1 | 7.2 | 9.8 | 10.3 | 9.4 | 8.8 | 7.7 | 7.0 |
| Precipitation (mm) | 27 | 41 | 71 | 198 | 241 | 259 | 83 | 195 | 53 | 24 | 70 | 46 |
| Sunny days | 16 | 14 | 21 | 14 | 17 | 10 | 12 | 10 | 9 | 20 | 20 | 20 |
| Rainy days | 13 | 13 | 10 | 16 | 14 | 20 | 19 | 21 | 21 | 11 | 10 | 11 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ōyabu is at