Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 194 days
Number of rainy days: 168 days
Number of snow days: 3 days
Look at detailed online map of Sŏnghyŏn
* Weather data for Sŏnghyŏn 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) | 16.1 | 14.9 | 23.6 | 26.8 | 32.5 | 32.9 | 34.5 | 35.8 | 29.9 | 22.7 | 25.7 | 18.4 |
| Average daytime temperature (°C) | 4.6 | 8.5 | 16.7 | 18.6 | 22.5 | 27.6 | 29.3 | 30.2 | 25.9 | 20.2 | 12.7 | 6.9 |
| Average temperature (°C) | -0.1 | 3.1 | 10.1 | 12.8 | 17.2 | 22.0 | 25.1 | 26.0 | 22.1 | 14.7 | 7.4 | 2.5 |
| Average night temperature (°C) | -3.9 | -1.2 | 4.4 | 7.7 | 12.5 | 17.9 | 22.0 | 22.7 | 18.9 | 10.0 | 2.7 | -1.1 |
| Absolute minimum temperature (°C) | -15.1 | -6.5 | -2.8 | 1.8 | 5.1 | 14.1 | 18.1 | 20.4 | 14.1 | 5.1 | -6.6 | -11.5 |
| 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 | 14.5 | 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) | 7.8 | 7.4 | 9.2 | 8.4 | 8.2 | 9.3 | 7.6 | 9.0 | 7.4 | 8.8 | 7.8 | 6.8 |
| Precipitation (mm) | 40 | 25 | 58 | 80 | 168 | 186 | 362 | 237 | 227 | 10 | 58 | 114 |
| Sunny days | 26 | 18 | 22 | 15 | 15 | 11 | 6 | 6 | 9 | 24 | 20 | 22 |
| Rainy days | 4 | 8 | 9 | 15 | 16 | 19 | 25 | 25 | 21 | 7 | 10 | 9 |
| Snow days | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sŏnghyŏn is at