Average annual temperature is 11.7 °C
Absolute maximum temperature: 30.1 °C
Absolute minimum temperature: -11.6 °C
Number of sunny days: 111 days
Number of rainy days: 233 days
Number of snow days: 21 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) | 13.0 | 13.1 | 19.2 | 23.1 | 24.9 | 27.6 | 29.6 | 30.1 | 29.1 | 21.7 | 21.0 | 15.6 |
| Average daytime temperature (°C) | 3.0 | 4.7 | 11.8 | 15.1 | 18.5 | 22.1 | 27.7 | 27.3 | 25.5 | 16.8 | 12.2 | 7.1 |
| Average temperature (°C) | -0.7 | 0.8 | 7.0 | 9.9 | 14.0 | 18.2 | 22.8 | 23.0 | 21.0 | 12.3 | 8.0 | 3.3 |
| Average night temperature (°C) | -4.3 | -2.9 | 3.0 | 5.8 | 10.2 | 15.0 | 19.1 | 20.1 | 17.7 | 8.8 | 4.4 | -0.2 |
| Absolute minimum temperature (°C) | -11.6 | -8.7 | -4.0 | 0.7 | 4.5 | 9.5 | 16.2 | 17.9 | 13.9 | 3.8 | -0.9 | -6.8 |
| 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 | 13.9 | 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) | 6.7 | 6.5 | 8.3 | 8.1 | 8.5 | 6.9 | 10.6 | 9.2 | 9.7 | 8.6 | 7.1 | 6.5 |
| Precipitation (mm) | 94 | 70 | 130 | 200 | 209 | 445 | 56 | 280 | 72 | 123 | 135 | 86 |
| Sunny days | 10 | 10 | 16 | 9 | 10 | 9 | 8 | 2 | 6 | 13 | 9 | 9 |
| Rainy days | 11 | 14 | 14 | 21 | 21 | 21 | 23 | 29 | 24 | 18 | 21 | 16 |
| Snow days | 10 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
The best time to visit Kōya during the most sunny months:
The largest precipitation sum in Kōya is at