Average annual temperature is 12.9 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -15.7 °C
Number of sunny days: 187 days
Number of rainy days: 172 days
Number of snow days: 6 days
Look at detailed online map of Sŏngsin
* Weather data for Sŏngsin 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) | 14.9 | 14.8 | 23.5 | 26.2 | 32.3 | 35.1 | 34.1 | 34.5 | 29.1 | 22.5 | 25.6 | 16.7 |
| Average daytime temperature (°C) | 3.9 | 7.6 | 16.7 | 18.7 | 23.2 | 28.8 | 29.2 | 30.0 | 25.9 | 19.6 | 11.7 | 5.6 |
| Average temperature (°C) | -1.4 | 1.7 | 9.1 | 12.3 | 17.4 | 22.9 | 24.7 | 25.6 | 21.6 | 13.3 | 5.9 | 0.7 |
| Average night temperature (°C) | -5.6 | -3.1 | 2.0 | 6.2 | 11.9 | 17.8 | 21.2 | 21.9 | 17.6 | 7.5 | 0.7 | -3.4 |
| Absolute minimum temperature (°C) | -15.7 | -7.2 | -4.6 | 0.1 | 3.6 | 14.2 | 17.1 | 17.6 | 11.8 | 1.9 | -7.0 | -12.4 |
| 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) | 7.5 | 7.5 | 9.0 | 8.3 | 8.3 | 10.1 | 7.3 | 9.5 | 7.5 | 9.0 | 7.7 | 6.4 |
| Precipitation (mm) | 36 | 15 | 48 | 54 | 126 | 151 | 363 | 339 | 210 | 9 | 63 | 95 |
| Sunny days | 22 | 19 | 21 | 13 | 17 | 12 | 5 | 6 | 8 | 23 | 20 | 21 |
| Rainy days | 6 | 9 | 10 | 17 | 14 | 18 | 26 | 25 | 22 | 8 | 9 | 8 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The largest precipitation sum in Sŏngsin is at