Average annual temperature is 13.5 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -14.7 °C
Number of sunny days: 193 days
Number of rainy days: 160 days
Number of snow days: 12 days
Look at detailed online map of Sŏngsan
* Weather data for Sŏngsan 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) | 13.7 | 11.5 | 25.4 | 27.5 | 31.2 | 35.9 | 33.9 | 35.1 | 30.8 | 23.0 | 23.5 | 17.8 |
| Average daytime temperature (°C) | 3.3 | 6.5 | 15.2 | 19.0 | 24.6 | 28.2 | 29.8 | 30.8 | 26.8 | 19.9 | 11.3 | 5.8 |
| Average temperature (°C) | -1.2 | 1.1 | 8.5 | 13.0 | 18.7 | 22.7 | 25.9 | 26.4 | 22.5 | 14.7 | 6.9 | 1.6 |
| Average night temperature (°C) | -5.4 | -2.9 | 3.3 | 8.1 | 13.6 | 18.5 | 23.0 | 22.9 | 19.1 | 10.1 | 2.5 | -2.1 |
| Absolute minimum temperature (°C) | -14.7 | -6.2 | -3.4 | 1.7 | 6.4 | 14.9 | 20.4 | 17.9 | 13.7 | 4.7 | -5.8 | -13.5 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 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 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.2 | 8.1 | 9.4 | 7.7 | 8.5 | 9.9 | 7.5 | 8.8 | 7.2 | 8.4 | 6.8 | 4.9 |
| Precipitation (mm) | 27 | 1 | 15 | 64 | 112 | 94 | 384 | 234 | 225 | 18 | 74 | 96 |
| Sunny days | 20 | 27 | 23 | 17 | 19 | 15 | 6 | 3 | 11 | 23 | 16 | 13 |
| Rainy days | 7 | 1 | 8 | 13 | 12 | 15 | 25 | 28 | 19 | 8 | 12 | 12 |
| Snow days | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 |
The best time to visit Sŏngsan during the most sunny months:
The largest precipitation sum in Sŏngsan is at