Average annual temperature is 13.2 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -15.9 °C
Number of sunny days: 199 days
Number of rainy days: 159 days
Number of snow days: 7 days
Look at detailed online map of Seongan
* Weather data for Seongan 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) | 12.1 | 12.6 | 23.0 | 25.4 | 32.3 | 33.9 | 33.7 | 34.9 | 29.9 | 22.1 | 23.4 | 15.7 |
| Average daytime temperature (°C) | 3.3 | 7.7 | 16.5 | 18.6 | 23.9 | 28.1 | 29.5 | 30.6 | 26.2 | 19.6 | 11.2 | 5.2 |
| Average temperature (°C) | -1.2 | 2.0 | 9.3 | 12.5 | 18.3 | 22.6 | 25.2 | 26.2 | 21.8 | 13.5 | 6.0 | 0.9 |
| Average night temperature (°C) | -5.1 | -2.5 | 2.9 | 6.6 | 12.8 | 18.0 | 22.0 | 22.6 | 18.1 | 8.4 | 1.3 | -2.7 |
| Absolute minimum temperature (°C) | -15.9 | -6.2 | -4.2 | 0.7 | 3.9 | 14.1 | 17.8 | 18.1 | 12.5 | 2.9 | -7.0 | -12.7 |
| 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) | 7.4 | 7.9 | 9.2 | 8.4 | 8.7 | 9.9 | 7.8 | 9.3 | 7.6 | 8.8 | 7.8 | 6.4 |
| Precipitation (mm) | 31 | 10 | 36 | 70 | 125 | 218 | 423 | 240 | 223 | 20 | 44 | 82 |
| Sunny days | 24 | 21 | 22 | 15 | 19 | 11 | 5 | 7 | 12 | 23 | 19 | 21 |
| Rainy days | 4 | 5 | 9 | 15 | 12 | 19 | 26 | 24 | 18 | 8 | 11 | 8 |
| Snow days | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Seongan is at