Average annual temperature is 13.4 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: -16.3 °C
Number of sunny days: 189 days
Number of rainy days: 169 days
Number of snow days: 7 days
Look at detailed online map of Seongmaru
* Weather data for Seongmaru 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) | 13.9 | 11.5 | 25.2 | 26.3 | 31.6 | 34.6 | 33.4 | 34.4 | 30.3 | 22.0 | 23.6 | 17.4 |
| Average daytime temperature (°C) | 3.5 | 7.0 | 16.3 | 19.4 | 24.3 | 28.9 | 29.3 | 30.5 | 26.3 | 19.4 | 11.3 | 5.7 |
| Average temperature (°C) | -1.6 | 1.1 | 9.0 | 13.1 | 18.7 | 23.3 | 25.6 | 26.4 | 22.4 | 14.3 | 6.5 | 1.6 |
| Average night temperature (°C) | -6.0 | -3.5 | 3.0 | 7.9 | 13.8 | 18.7 | 22.7 | 23.1 | 18.9 | 9.8 | 1.9 | -2.2 |
| Absolute minimum temperature (°C) | -16.3 | -7.6 | -5.3 | 1.5 | 4.6 | 14.5 | 19.1 | 17.3 | 12.6 | 4.0 | -7.1 | -13.0 |
| 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) | 10.0 | 10.9 | 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 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 7.6 | 9.0 | 7.7 | 8.2 | 10.2 | 7.3 | 9.4 | 7.4 | 8.7 | 7.2 | 5.6 |
| Precipitation (mm) | 36 | 5 | 27 | 59 | 114 | 160 | 497 | 374 | 251 | 12 | 73 | 90 |
| Sunny days | 19 | 22 | 24 | 12 | 18 | 13 | 5 | 6 | 8 | 26 | 18 | 18 |
| Rainy days | 8 | 6 | 7 | 18 | 13 | 17 | 26 | 25 | 22 | 5 | 12 | 10 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The best time to visit Seongmaru during the most sunny months:
The largest precipitation sum in Seongmaru is at