Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -22.7 °C
Number of sunny days: 180 days
Number of rainy days: 168 days
Number of snow days: 17 days
Look at detailed online map of Seong-chon
* Weather data for Seong-chon 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) | 11.1 | 9.9 | 22.6 | 25.9 | 30.5 | 33.8 | 33.5 | 33.4 | 30.6 | 21.8 | 23.0 | 15.5 |
| Average daytime temperature (°C) | 0.7 | 5.8 | 14.4 | 17.7 | 23.4 | 26.4 | 29.0 | 29.5 | 25.9 | 18.4 | 9.1 | 3.6 |
| Average temperature (°C) | -3.8 | 0.5 | 7.9 | 12.1 | 17.9 | 21.8 | 25.2 | 25.7 | 21.9 | 13.8 | 4.8 | -0.2 |
| Average night temperature (°C) | -8.6 | -3.3 | 2.3 | 7.4 | 13.3 | 17.9 | 22.4 | 22.4 | 18.5 | 9.7 | 0.8 | -3.7 |
| Absolute minimum temperature (°C) | -22.7 | -7.0 | -4.6 | 1.7 | 5.2 | 13.9 | 19.3 | 18.1 | 12.4 | 4.8 | -8.2 | -15.4 |
| 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) | 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) | 7.1 | 8.3 | 9.2 | 7.4 | 8.8 | 9.3 | 7.4 | 8.2 | 7.3 | 8.0 | 7.0 | 5.8 |
| Precipitation (mm) | 46 | 1 | 16 | 106 | 143 | 217 | 443 | 349 | 182 | 38 | 127 | 87 |
| Sunny days | 18 | 23 | 25 | 16 | 20 | 11 | 4 | 6 | 7 | 18 | 15 | 17 |
| Rainy days | 4 | 3 | 6 | 14 | 11 | 19 | 27 | 25 | 23 | 13 | 13 | 10 |
| Snow days | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Seong-chon is at