Average annual temperature is 13.9 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -12.9 °C
Number of sunny days: 202 days
Number of rainy days: 161 days
Number of snow days: 2 days
Look at detailed online map of Wŏnjŏn
* Weather data for Wŏnjŏn 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) | 17.0 | 14.5 | 22.7 | 27.3 | 31.3 | 33.3 | 34.1 | 35.9 | 30.0 | 24.1 | 25.9 | 18.0 |
| Average daytime temperature (°C) | 6.2 | 9.3 | 17.2 | 18.8 | 23.0 | 28.3 | 29.2 | 30.8 | 26.8 | 21.0 | 13.5 | 7.8 |
| Average temperature (°C) | 0.5 | 3.2 | 10.0 | 12.9 | 17.6 | 22.5 | 25.1 | 26.2 | 22.4 | 15.0 | 7.8 | 2.8 |
| Average night temperature (°C) | -3.6 | -1.3 | 4.3 | 8.0 | 13.4 | 18.4 | 22.3 | 23.0 | 19.1 | 10.0 | 3.1 | -0.9 |
| Absolute minimum temperature (°C) | -12.9 | -5.9 | -2.9 | 1.6 | 6.7 | 15.8 | 18.1 | 20.4 | 15.1 | 5.4 | -4.6 | -10.5 |
| 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) | 10.1 | 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 | 7.4 | 8.7 | 7.9 | 7.7 | 9.2 | 7.0 | 9.5 | 7.5 | 8.7 | 8.0 | 6.9 |
| Precipitation (mm) | 49 | 28 | 57 | 100 | 201 | 158 | 305 | 355 | 203 | 11 | 70 | 87 |
| Sunny days | 26 | 19 | 21 | 16 | 16 | 13 | 5 | 4 | 11 | 25 | 23 | 23 |
| Rainy days | 4 | 9 | 10 | 14 | 15 | 17 | 26 | 27 | 19 | 6 | 7 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Wŏnjŏn is at