Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -17.9 °C
Number of sunny days: 195 days
Number of rainy days: 162 days
Number of snow days: 8 days
Look at detailed online map of Geoncheon
* Weather data for Geoncheon 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) | 11.9 | 11.4 | 22.9 | 24.6 | 31.0 | 32.3 | 33.0 | 33.8 | 28.7 | 21.2 | 22.6 | 14.9 |
| Average daytime temperature (°C) | 2.3 | 6.6 | 15.4 | 17.3 | 22.6 | 27.1 | 28.6 | 29.4 | 25.0 | 18.4 | 10.3 | 4.3 |
| Average temperature (°C) | -2.2 | 1.1 | 8.6 | 11.5 | 17.2 | 21.6 | 24.5 | 25.3 | 21.0 | 13.2 | 5.6 | 0.2 |
| Average night temperature (°C) | -6.1 | -3.1 | 2.8 | 6.4 | 12.4 | 17.4 | 21.4 | 22.1 | 17.6 | 9.1 | 1.3 | -3.2 |
| Absolute minimum temperature (°C) | -17.9 | -7.8 | -4.6 | 0.0 | 3.6 | 13.7 | 17.5 | 19.0 | 12.4 | 3.3 | -8.3 | -13.6 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 7.5 | 7.8 | 9.2 | 8.5 | 9.0 | 9.8 | 7.8 | 9.6 | 7.5 | 8.8 | 7.9 | 6.7 |
| Precipitation (mm) | 30 | 12 | 42 | 66 | 140 | 243 | 350 | 235 | 212 | 15 | 35 | 77 |
| Sunny days | 25 | 19 | 22 | 16 | 18 | 9 | 5 | 6 | 11 | 22 | 20 | 22 |
| Rainy days | 4 | 5 | 9 | 14 | 13 | 21 | 26 | 25 | 19 | 9 | 10 | 7 |
| Snow days | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Geoncheon is at