Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -18.5 °C
Number of sunny days: 175 days
Number of rainy days: 172 days
Number of snow days: 18 days
Look at detailed online map of Sŏngmun
* Weather data for Sŏngmun 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 | 11.1 | 23.8 | 24.6 | 31.4 | 32.1 | 32.9 | 33.6 | 29.6 | 21.9 | 23.0 | 16.5 |
| Average daytime temperature (°C) | 1.3 | 6.5 | 14.9 | 17.7 | 23.5 | 26.9 | 29.0 | 29.9 | 25.7 | 18.3 | 9.8 | 3.8 |
| Average temperature (°C) | -3.4 | 0.8 | 8.3 | 11.9 | 17.8 | 22.0 | 25.1 | 25.7 | 21.6 | 13.3 | 5.0 | -0.1 |
| Average night temperature (°C) | -8.1 | -3.2 | 2.4 | 6.9 | 12.5 | 17.7 | 22.1 | 22.4 | 18.3 | 9.2 | 0.7 | -3.5 |
| Absolute minimum temperature (°C) | -18.5 | -7.1 | -4.6 | 0.2 | 3.5 | 13.1 | 18.9 | 17.3 | 12.3 | 3.2 | -8.7 | -14.7 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 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) | 7.0 | 7.9 | 9.3 | 7.9 | 8.9 | 9.9 | 7.6 | 9.1 | 7.3 | 8.2 | 7.4 | 5.9 |
| Precipitation (mm) | 30 | 3 | 25 | 84 | 127 | 224 | 667 | 364 | 208 | 18 | 65 | 105 |
| Sunny days | 18 | 22 | 22 | 14 | 19 | 8 | 5 | 6 | 8 | 21 | 16 | 16 |
| Rainy days | 5 | 4 | 9 | 16 | 12 | 22 | 26 | 25 | 22 | 10 | 12 | 9 |
| Snow days | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The largest precipitation sum in Sŏngmun is at