Average annual temperature is 14.8 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -10.0 °C
Number of sunny days: 149 days
Number of rainy days: 208 days
Number of snow days: 8 days
Look at detailed online map of Kōzan
* Weather data for Kōzan 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) | 15.1 | 14.4 | 20.7 | 24.2 | 28.2 | 29.6 | 33.0 | 33.9 | 32.2 | 25.0 | 24.3 | 19.0 |
| Average daytime temperature (°C) | 7.2 | 8.4 | 15.2 | 17.7 | 21.7 | 24.9 | 29.2 | 30.6 | 28.1 | 20.6 | 15.3 | 9.5 |
| Average temperature (°C) | 3.0 | 4.0 | 10.0 | 12.7 | 17.1 | 20.8 | 25.5 | 26.3 | 23.9 | 15.9 | 11.2 | 5.9 |
| Average night temperature (°C) | -0.1 | 0.5 | 5.7 | 8.8 | 13.4 | 17.7 | 22.3 | 23.2 | 20.9 | 12.6 | 8.0 | 3.0 |
| Absolute minimum temperature (°C) | -10.0 | -4.4 | -2.4 | 4.4 | 7.8 | 12.6 | 17.9 | 21.0 | 17.6 | 8.5 | 1.8 | -3.8 |
| 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) | 10.1 | 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) | 6.5 | 6.3 | 8.3 | 7.9 | 8.8 | 7.5 | 9.2 | 9.6 | 8.9 | 8.4 | 7.7 | 6.4 |
| Precipitation (mm) | 43 | 60 | 81 | 210 | 229 | 206 | 107 | 186 | 61 | 21 | 41 | 45 |
| Sunny days | 15 | 12 | 18 | 17 | 11 | 11 | 8 | 2 | 5 | 19 | 18 | 13 |
| Rainy days | 12 | 14 | 13 | 13 | 20 | 19 | 23 | 29 | 25 | 12 | 12 | 16 |
| Snow days | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Kōzan is at