Average annual temperature is 14.8 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -11.9 °C
Number of sunny days: 195 days
Number of rainy days: 167 days
Number of snow days: 3 days
Look at detailed online map of Wŏlsŏng
* Weather data for Wŏlsŏng 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) | 16.5 | 15.5 | 24.4 | 28.9 | 31.4 | 34.2 | 35.6 | 36.5 | 31.2 | 24.4 | 27.0 | 19.4 |
| Average daytime temperature (°C) | 7.2 | 10.7 | 17.9 | 19.9 | 23.7 | 28.8 | 30.1 | 31.5 | 27.4 | 21.9 | 15.0 | 9.3 |
| Average temperature (°C) | 1.4 | 4.4 | 11.0 | 13.9 | 18.3 | 23.1 | 25.8 | 27.1 | 23.1 | 15.7 | 9.0 | 4.0 |
| Average night temperature (°C) | -3.2 | -0.4 | 5.3 | 8.7 | 14.0 | 18.8 | 22.7 | 23.7 | 19.6 | 10.4 | 3.9 | -0.1 |
| Absolute minimum temperature (°C) | -11.9 | -5.3 | -4.2 | 2.1 | 7.3 | 15.0 | 19.0 | 21.8 | 15.6 | 5.2 | -4.0 | -7.7 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 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 | 7.6 | 8.6 | 7.9 | 7.6 | 9.0 | 7.1 | 9.6 | 7.6 | 8.5 | 8.1 | 6.9 |
| Precipitation (mm) | 47 | 32 | 76 | 78 | 245 | 181 | 244 | 340 | 255 | 7 | 55 | 70 |
| Sunny days | 25 | 20 | 22 | 14 | 13 | 12 | 4 | 6 | 9 | 25 | 23 | 22 |
| Rainy days | 5 | 8 | 9 | 16 | 18 | 18 | 27 | 25 | 21 | 6 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Wŏlsŏng is at