Average annual temperature is 14.3 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -14.7 °C
Number of sunny days: 191 days
Number of rainy days: 168 days
Number of snow days: 6 days
Look at detailed online map of Seongdo
* Weather data for Seongdo 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) | 16.2 | 16.1 | 23.9 | 27.6 | 33.8 | 35.2 | 34.6 | 36.5 | 30.8 | 22.7 | 25.5 | 17.4 |
| Average daytime temperature (°C) | 5.0 | 9.1 | 17.6 | 19.5 | 23.9 | 29.3 | 29.9 | 31.2 | 26.9 | 20.6 | 12.6 | 6.7 |
| Average temperature (°C) | 0.2 | 3.4 | 10.7 | 13.5 | 18.5 | 23.4 | 25.7 | 26.8 | 22.8 | 15.4 | 7.8 | 2.7 |
| Average night temperature (°C) | -3.8 | -1.1 | 4.7 | 8.1 | 13.6 | 18.8 | 22.7 | 23.4 | 19.4 | 10.9 | 3.2 | -0.7 |
| Absolute minimum temperature (°C) | -14.7 | -5.8 | -2.3 | 2.0 | 6.5 | 14.9 | 17.6 | 21.3 | 15.1 | 5.6 | -6.2 | -11.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.7 | 7.3 | 9.1 | 8.3 | 8.3 | 9.8 | 7.4 | 9.4 | 7.6 | 8.9 | 7.8 | 6.6 |
| Precipitation (mm) | 35 | 16 | 42 | 50 | 135 | 162 | 352 | 302 | 209 | 7 | 47 | 73 |
| Sunny days | 25 | 18 | 22 | 15 | 18 | 11 | 4 | 8 | 9 | 21 | 20 | 20 |
| Rainy days | 4 | 9 | 9 | 15 | 13 | 19 | 27 | 23 | 21 | 10 | 9 | 9 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Seongdo is at