Average annual temperature is 13.8 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -15.0 °C
Number of sunny days: 168 days
Number of rainy days: 183 days
Number of snow days: 14 days
Look at detailed online map of Geomjang
* Weather data for Geomjang 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) | 16.0 | 12.1 | 25.6 | 24.8 | 30.4 | 34.0 | 33.2 | 33.8 | 31.4 | 23.0 | 25.2 | 19.2 |
| Average daytime temperature (°C) | 4.6 | 7.0 | 15.2 | 18.8 | 23.7 | 26.9 | 29.3 | 30.4 | 26.8 | 20.4 | 13.0 | 7.3 |
| Average temperature (°C) | -0.1 | 1.8 | 8.5 | 13.0 | 18.2 | 22.1 | 25.6 | 26.3 | 22.4 | 15.1 | 8.5 | 3.6 |
| Average night temperature (°C) | -4.8 | -2.5 | 3.6 | 8.0 | 13.8 | 18.7 | 22.7 | 22.9 | 18.7 | 10.2 | 3.9 | 0.0 |
| Absolute minimum temperature (°C) | -15.0 | -5.8 | -4.3 | 1.9 | 5.0 | 14.8 | 20.0 | 16.8 | 13.4 | 6.2 | -3.7 | -10.0 |
| 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 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.1 | 7.5 | 8.9 | 7.8 | 8.2 | 9.5 | 7.1 | 9.6 | 7.7 | 8.6 | 6.4 | 4.9 |
| Precipitation (mm) | 37 | 9 | 27 | 74 | 167 | 150 | 514 | 218 | 228 | 18 | 95 | 134 |
| Sunny days | 19 | 22 | 23 | 17 | 15 | 13 | 2 | 3 | 10 | 21 | 13 | 10 |
| Rainy days | 6 | 6 | 8 | 13 | 16 | 17 | 29 | 28 | 20 | 10 | 16 | 14 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Geomjang is at