Average annual temperature is 12.0 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -17.0 °C
Number of sunny days: 180 days
Number of rainy days: 172 days
Number of snow days: 13 days
Look at detailed online map of Seongnae
* Weather data for Seongnae 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) | 8.4 | 7.8 | 18.2 | 20.8 | 24.8 | 30.3 | 31.2 | 33.5 | 29.2 | 22.6 | 20.2 | 13.1 |
| Average daytime temperature (°C) | 0.8 | 4.1 | 9.8 | 14.7 | 19.0 | 23.1 | 26.7 | 28.0 | 25.3 | 18.9 | 9.6 | 3.3 |
| Average temperature (°C) | -2.8 | 0.1 | 5.8 | 11.0 | 16.0 | 20.6 | 24.5 | 25.5 | 22.2 | 15.0 | 5.6 | 0.0 |
| Average night temperature (°C) | -6.5 | -3.3 | 1.9 | 7.9 | 12.9 | 18.2 | 22.5 | 22.7 | 19.1 | 11.1 | 1.9 | -3.7 |
| Absolute minimum temperature (°C) | -17.0 | -5.9 | -2.6 | 2.0 | 7.6 | 15.2 | 19.9 | 17.1 | 14.0 | 6.2 | -6.6 | -14.2 |
| 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 | 13.0 | 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 | 8.6 | 9.1 | 7.5 | 9.0 | 9.5 | 8.2 | 8.7 | 8.0 | 8.5 | 6.9 | 6.5 |
| Precipitation (mm) | 26 | 4 | 33 | 123 | 185 | 177 | 284 | 294 | 76 | 42 | 85 | 63 |
| Sunny days | 19 | 26 | 23 | 10 | 18 | 9 | 6 | 7 | 10 | 19 | 14 | 19 |
| Rainy days | 5 | 2 | 8 | 20 | 13 | 21 | 25 | 24 | 20 | 12 | 14 | 8 |
| Snow days | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The largest precipitation sum in Seongnae is at