Average annual temperature is 14.3 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -14.3 °C
Number of sunny days: 158 days
Number of rainy days: 196 days
Number of snow days: 11 days
Look at detailed online map of Geoseong
* Weather data for Geoseong 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) | 15.9 | 11.9 | 24.0 | 25.8 | 29.1 | 32.9 | 32.8 | 33.7 | 31.3 | 23.5 | 24.5 | 18.9 |
| Average daytime temperature (°C) | 5.1 | 7.0 | 14.9 | 18.5 | 23.0 | 26.6 | 29.0 | 30.4 | 26.9 | 20.4 | 13.2 | 7.9 |
| Average temperature (°C) | 1.2 | 2.4 | 8.7 | 13.1 | 18.0 | 22.1 | 25.7 | 26.6 | 23.0 | 15.9 | 9.4 | 4.5 |
| Average night temperature (°C) | -3.2 | -1.3 | 4.2 | 8.7 | 14.0 | 18.9 | 23.3 | 23.5 | 19.7 | 11.8 | 5.2 | 0.9 |
| Absolute minimum temperature (°C) | -14.3 | -4.7 | -3.0 | 2.9 | 5.6 | 14.8 | 21.1 | 18.6 | 15.5 | 7.9 | -2.3 | -9.8 |
| 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) | 6.7 | 7.3 | 8.8 | 7.5 | 7.6 | 9.2 | 6.7 | 9.7 | 7.9 | 8.2 | 6.7 | 4.7 |
| Precipitation (mm) | 39 | 12 | 25 | 92 | 147 | 149 | 588 | 184 | 177 | 19 | 93 | 121 |
| Sunny days | 18 | 21 | 24 | 13 | 10 | 15 | 0 | 4 | 9 | 21 | 13 | 10 |
| Rainy days | 9 | 7 | 7 | 17 | 21 | 15 | 31 | 27 | 21 | 10 | 16 | 15 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The best time to visit Geoseong during the most sunny months:
The largest precipitation sum in Geoseong is at