Average annual temperature is 11.0 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: -19.7 °C
Number of sunny days: 179 days
Number of rainy days: 171 days
Number of snow days: 15 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) | 10.3 | 9.6 | 20.9 | 23.8 | 27.2 | 33.2 | 31.5 | 32.0 | 29.1 | 20.3 | 21.3 | 13.9 |
| Average daytime temperature (°C) | 0.2 | 4.9 | 13.0 | 16.1 | 21.6 | 25.5 | 27.7 | 27.9 | 24.7 | 17.2 | 7.7 | 2.3 |
| Average temperature (°C) | -4.5 | -0.7 | 6.5 | 10.4 | 16.2 | 20.6 | 24.0 | 24.3 | 20.5 | 12.3 | 3.2 | -1.6 |
| Average night temperature (°C) | -9.0 | -4.5 | 0.8 | 5.6 | 11.3 | 16.4 | 21.0 | 21.1 | 16.9 | 7.8 | -1.0 | -5.3 |
| Absolute minimum temperature (°C) | -19.7 | -7.9 | -5.7 | -1.7 | 3.8 | 12.0 | 17.2 | 16.1 | 10.7 | 1.4 | -9.5 | -17.1 |
| 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 | 9.2 | 7.3 | 9.3 | 9.3 | 7.9 | 8.1 | 7.5 | 8.3 | 6.9 | 6.1 |
| Precipitation (mm) | 39 | 1 | 24 | 129 | 145 | 242 | 416 | 330 | 127 | 24 | 105 | 79 |
| Sunny days | 18 | 25 | 23 | 12 | 19 | 9 | 6 | 6 | 8 | 19 | 16 | 18 |
| Rainy days | 5 | 2 | 8 | 18 | 12 | 21 | 25 | 25 | 22 | 12 | 12 | 9 |
| Snow days | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Geomdan is at