Average annual temperature is 15.0 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -9.4 °C
Number of sunny days: 206 days
Number of rainy days: 157 days
Number of snow days: 2 days
Look at detailed online map of Kosa-ri
* Weather data for Kosa-ri 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) | 13.8 | 12.3 | 21.2 | 23.9 | 22.7 | 26.9 | 32.8 | 34.1 | 29.3 | 23.8 | 22.4 | 16.1 |
| Average daytime temperature (°C) | 6.2 | 8.6 | 13.7 | 16.4 | 19.8 | 24.1 | 27.0 | 29.4 | 26.6 | 20.9 | 13.9 | 8.6 |
| Average temperature (°C) | 2.8 | 4.9 | 10.1 | 13.5 | 17.4 | 21.8 | 24.7 | 26.8 | 23.9 | 17.3 | 10.6 | 5.5 |
| Average night temperature (°C) | -1.1 | 1.1 | 6.8 | 10.5 | 15.6 | 20.0 | 22.9 | 24.8 | 21.4 | 13.9 | 6.9 | 2.3 |
| Absolute minimum temperature (°C) | -9.4 | -1.8 | 0.9 | 5.2 | 10.6 | 16.0 | 19.2 | 23.2 | 17.1 | 10.0 | -0.5 | -5.2 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 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) | 7.8 | 7.4 | 8.6 | 7.7 | 7.7 | 8.5 | 6.9 | 10.1 | 8.1 | 8.8 | 8.1 | 7.0 |
| Precipitation (mm) | 52 | 42 | 56 | 169 | 226 | 241 | 439 | 308 | 229 | 10 | 52 | 71 |
| Sunny days | 26 | 19 | 22 | 17 | 13 | 13 | 9 | 8 | 11 | 24 | 24 | 20 |
| Rainy days | 5 | 9 | 9 | 13 | 18 | 17 | 22 | 23 | 19 | 7 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Kosa-ri is at