Average annual temperature is 12.2 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -19.0 °C
Number of sunny days: 182 days
Number of rainy days: 168 days
Number of snow days: 15 days
Look at detailed online map of Koga
* Weather data for Koga South Korea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.0 | 11.1 | 23.1 | 25.6 | 30.0 | 34.3 | 33.7 | 34.0 | 30.4 | 21.7 | 23.2 | 15.5 |
| Average daytime temperature (°C) | 1.5 | 6.2 | 14.5 | 17.6 | 23.3 | 27.0 | 29.6 | 29.8 | 25.9 | 18.5 | 9.3 | 3.6 |
| Average temperature (°C) | -3.2 | 0.7 | 7.7 | 11.6 | 17.4 | 21.8 | 25.2 | 25.4 | 21.5 | 13.3 | 4.6 | -0.4 |
| Average night temperature (°C) | -7.6 | -3.0 | 2.1 | 6.7 | 12.2 | 17.2 | 21.9 | 21.8 | 17.9 | 9.1 | 0.6 | -3.8 |
| Absolute minimum temperature (°C) | -19.0 | -6.6 | -4.8 | 0.6 | 4.5 | 13.2 | 18.2 | 17.6 | 12.4 | 4.6 | -8.4 | -15.3 |
| 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 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 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) | 7.2 | 8.2 | 9.0 | 7.2 | 9.1 | 9.4 | 7.7 | 7.9 | 7.1 | 7.7 | 6.9 | 6.0 |
| Precipitation (mm) | 34 | 2 | 15 | 115 | 132 | 200 | 366 | 356 | 156 | 29 | 110 | 93 |
| Sunny days | 21 | 23 | 23 | 16 | 19 | 8 | 5 | 5 | 8 | 19 | 16 | 19 |
| Rainy days | 3 | 1 | 8 | 14 | 12 | 22 | 26 | 26 | 22 | 12 | 12 | 10 |
| Snow days | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Koga is at