Average annual temperature is 12.2 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -12.3 °C
Number of sunny days: 82 days
Number of rainy days: 260 days
Number of snow days: 23 days
Look at detailed online map of Ōya
* Weather data for Ōya 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) | 11.6 | 12.0 | 20.5 | 24.3 | 30.5 | 28.1 | 32.7 | 35.7 | 35.1 | 24.1 | 22.7 | 15.4 |
| Average daytime temperature (°C) | 3.4 | 3.8 | 12.8 | 16.8 | 20.0 | 24.0 | 28.2 | 32.2 | 27.3 | 18.3 | 12.9 | 7.2 |
| Average temperature (°C) | -0.1 | 0.1 | 5.5 | 9.9 | 14.1 | 19.2 | 23.6 | 26.8 | 22.3 | 12.8 | 8.2 | 3.2 |
| Average night temperature (°C) | -3.7 | -3.5 | 0.2 | 4.2 | 8.6 | 14.9 | 19.2 | 22.2 | 18.7 | 8.5 | 4.7 | -0.1 |
| Absolute minimum temperature (°C) | -12.3 | -11.9 | -3.9 | -3.0 | 0.7 | 8.6 | 13.8 | 19.4 | 11.0 | 4.7 | 0.1 | -4.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.8 | 5.1 | 8.2 | 8.5 | 8.6 | 8.0 | 9.3 | 11.7 | 7.7 | 8.2 | 5.5 | 3.8 |
| Precipitation (mm) | 102 | 128 | 76 | 92 | 206 | 209 | 159 | 48 | 195 | 103 | 187 | 201 |
| Sunny days | 2 | 5 | 16 | 17 | 9 | 5 | 2 | 4 | 5 | 6 | 7 | 4 |
| Rainy days | 18 | 14 | 15 | 13 | 22 | 25 | 29 | 27 | 25 | 25 | 23 | 24 |
| Snow days | 11 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The best time to visit Ōya during the most sunny months:
The largest precipitation sum in Ōya is at