Average annual temperature is 12.3 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 189 days
Number of rainy days: 166 days
Number of snow days: 10 days
Look at detailed online map of Seongnam-dong
* Weather data for Seongnam-dong 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) | 11.3 | 9.1 | 20.8 | 22.8 | 25.3 | 30.4 | 32.9 | 34.0 | 30.5 | 22.7 | 22.6 | 15.6 |
| Average daytime temperature (°C) | 1.7 | 4.9 | 11.5 | 16.0 | 20.7 | 23.9 | 28.5 | 29.3 | 26.1 | 19.4 | 9.9 | 4.4 |
| Average temperature (°C) | -2.6 | 0.4 | 6.6 | 11.6 | 16.5 | 20.8 | 25.1 | 25.8 | 22.2 | 14.4 | 5.4 | 0.2 |
| Average night temperature (°C) | -6.9 | -3.5 | 2.0 | 8.0 | 12.8 | 18.0 | 22.5 | 22.7 | 18.8 | 9.9 | 1.1 | -3.8 |
| Absolute minimum temperature (°C) | -17.0 | -6.6 | -2.7 | 2.4 | 5.1 | 14.4 | 19.9 | 17.6 | 13.2 | 5.2 | -6.9 | -14.0 |
| 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) | 7.0 | 8.5 | 9.2 | 7.5 | 9.1 | 9.5 | 7.8 | 8.8 | 7.5 | 8.3 | 7.2 | 6.2 |
| Precipitation (mm) | 42 | 3 | 18 | 100 | 156 | 253 | 367 | 323 | 149 | 60 | 88 | 83 |
| Sunny days | 20 | 25 | 24 | 15 | 19 | 11 | 6 | 8 | 9 | 20 | 16 | 16 |
| Rainy days | 7 | 3 | 7 | 15 | 12 | 19 | 25 | 23 | 21 | 11 | 13 | 10 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 |
The largest precipitation sum in Seongnam-dong is at