Average annual temperature is 13.4 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 199 days
Number of rainy days: 154 days
Number of snow days: 12 days
Look at detailed online map of Wŏnsŏngho
* Weather data for Wŏnsŏngho 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) | 11.2 | 8.8 | 19.6 | 23.6 | 24.7 | 28.0 | 29.4 | 35.3 | 29.7 | 22.4 | 21.2 | 14.5 |
| Average daytime temperature (°C) | 3.0 | 4.6 | 10.1 | 14.4 | 18.8 | 22.4 | 25.9 | 28.3 | 25.3 | 19.0 | 11.4 | 6.0 |
| Average temperature (°C) | 0.5 | 1.8 | 7.0 | 11.5 | 16.1 | 20.3 | 24.6 | 26.1 | 22.8 | 16.7 | 8.9 | 3.7 |
| Average night temperature (°C) | -2.8 | -1.0 | 3.7 | 9.0 | 13.8 | 18.3 | 23.2 | 24.1 | 20.8 | 14.0 | 5.9 | 0.8 |
| Absolute minimum temperature (°C) | -12.1 | -4.5 | -0.6 | 4.8 | 7.6 | 15.6 | 20.4 | 20.4 | 17.1 | 9.6 | -2.1 | -8.2 |
| 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 | 10.9 | 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) | 7.1 | 8.5 | 9.4 | 8.0 | 8.8 | 10.0 | 7.9 | 9.3 | 7.5 | 8.6 | 6.8 | 4.7 |
| Precipitation (mm) | 43 | 1 | 18 | 82 | 119 | 187 | 486 | 201 | 243 | 14 | 82 | 93 |
| Sunny days | 18 | 26 | 24 | 16 | 20 | 18 | 6 | 12 | 13 | 22 | 12 | 12 |
| Rainy days | 8 | 2 | 7 | 14 | 11 | 12 | 25 | 19 | 17 | 9 | 17 | 13 |
| Snow days | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The largest precipitation sum in Wŏnsŏngho is at