Average annual temperature is 11.6 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -10.6 °C
Number of sunny days: 88 days
Number of rainy days: 228 days
Number of snow days: 49 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) | 9.6 | 9.9 | 20.8 | 22.4 | 26.8 | 30.6 | 33.2 | 36.2 | 30.9 | 22.3 | 21.6 | 13.1 |
| Average daytime temperature (°C) | 0.4 | 1.9 | 11.0 | 14.8 | 19.3 | 24.4 | 27.7 | 32.0 | 26.2 | 18.0 | 11.4 | 3.4 |
| Average temperature (°C) | -2.2 | -0.7 | 4.9 | 9.7 | 13.8 | 19.4 | 23.6 | 27.3 | 21.6 | 12.9 | 7.7 | 0.3 |
| Average night temperature (°C) | -4.9 | -3.3 | -0.1 | 5.5 | 9.0 | 15.5 | 20.1 | 23.6 | 17.8 | 8.9 | 4.4 | -2.9 |
| Absolute minimum temperature (°C) | -10.6 | -8.0 | -7.1 | -1.9 | 1.4 | 10.4 | 14.4 | 21.2 | 8.8 | 3.9 | -5.7 | -10.2 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 5.1 | 5.8 | 8.4 | 8.5 | 9.8 | 8.2 | 9.9 | 11.5 | 7.9 | 8.1 | 5.0 | 3.7 |
| Precipitation (mm) | 108 | 87 | 97 | 131 | 135 | 142 | 220 | 50 | 110 | 130 | 217 | 114 |
| Sunny days | 1 | 2 | 18 | 10 | 12 | 7 | 5 | 5 | 9 | 11 | 5 | 3 |
| Rainy days | 10 | 13 | 13 | 20 | 19 | 23 | 26 | 26 | 21 | 20 | 22 | 15 |
| Snow days | 20 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 13 |
The best time to visit Kōya during the most sunny months:
The largest precipitation sum in Kōya is at