Average annual temperature is 14.1 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 147 days
Number of rainy days: 208 days
Number of snow days: 10 days
Look at detailed online map of Kōya
* Weather data for Kōya 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) | 13.5 | 15.5 | 18.8 | 22.8 | 26.2 | 29.0 | 31.8 | 34.8 | 30.3 | 24.2 | 23.8 | 16.1 |
| Average daytime temperature (°C) | 5.6 | 6.6 | 12.6 | 16.7 | 18.7 | 23.2 | 27.7 | 29.9 | 27.0 | 20.2 | 14.9 | 9.3 |
| Average temperature (°C) | 2.0 | 2.6 | 7.8 | 12.2 | 15.0 | 20.4 | 25.0 | 27.5 | 24.2 | 15.7 | 10.7 | 5.2 |
| Average night temperature (°C) | -1.1 | -0.7 | 3.5 | 7.8 | 11.3 | 17.9 | 22.3 | 25.3 | 21.9 | 11.8 | 7.0 | 2.0 |
| Absolute minimum temperature (°C) | -6.6 | -4.2 | -1.5 | 1.9 | 3.7 | 13.5 | 19.0 | 22.9 | 16.3 | 8.2 | 0.1 | -3.4 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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) | 6.8 | 7.5 | 8.2 | 8.9 | 8.2 | 7.4 | 9.6 | 11.8 | 7.8 | 8.7 | 6.9 | 6.9 |
| Precipitation (mm) | 22 | 55 | 77 | 51 | 134 | 229 | 113 | 51 | 266 | 44 | 75 | 57 |
| Sunny days | 14 | 14 | 19 | 19 | 12 | 5 | 8 | 15 | 4 | 12 | 11 | 14 |
| Rainy days | 11 | 11 | 12 | 11 | 19 | 25 | 23 | 16 | 26 | 19 | 19 | 16 |
| Snow days | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Kōya during the most sunny months:
The largest precipitation sum in Kōya is at