Average annual temperature is 12.5 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -17.9 °C
Number of sunny days: 185 days
Number of rainy days: 167 days
Number of snow days: 13 days
Look at detailed online map of Geomdan
* Weather data for Geomdan 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) | 11.8 | 11.5 | 23.4 | 26.4 | 30.2 | 35.4 | 34.4 | 34.7 | 30.9 | 22.6 | 23.7 | 15.9 |
| Average daytime temperature (°C) | 2.1 | 6.8 | 15.0 | 18.2 | 23.8 | 27.7 | 30.2 | 30.3 | 26.5 | 19.1 | 9.8 | 4.1 |
| Average temperature (°C) | -3.0 | 0.8 | 7.7 | 12.1 | 17.7 | 22.4 | 25.8 | 25.9 | 21.9 | 13.5 | 4.9 | -0.3 |
| Average night temperature (°C) | -7.5 | -3.3 | 1.4 | 7.0 | 12.3 | 17.8 | 22.5 | 22.4 | 18.3 | 9.0 | 0.9 | -3.9 |
| Absolute minimum temperature (°C) | -17.9 | -5.9 | -4.0 | 0.9 | 5.2 | 13.8 | 19.0 | 18.3 | 12.6 | 3.6 | -7.6 | -14.6 |
| 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 | 8.3 | 9.1 | 7.3 | 9.1 | 9.5 | 7.8 | 7.9 | 7.3 | 7.9 | 6.8 | 6.1 |
| Precipitation (mm) | 37 | 1 | 21 | 112 | 128 | 218 | 406 | 308 | 143 | 26 | 93 | 88 |
| Sunny days | 20 | 23 | 25 | 15 | 18 | 10 | 4 | 6 | 8 | 20 | 16 | 20 |
| Rainy days | 5 | 1 | 6 | 15 | 13 | 20 | 27 | 25 | 22 | 11 | 12 | 10 |
| Snow days | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The largest precipitation sum in Geomdan is at