Average annual temperature is 13.3 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -15.8 °C
Number of sunny days: 200 days
Number of rainy days: 157 days
Number of snow days: 8 days
Look at detailed online map of Wŏnnam
* Weather data for Wŏnnam 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) | 13.1 | 10.8 | 25.4 | 26.7 | 31.8 | 34.9 | 33.6 | 34.4 | 30.6 | 22.6 | 24.1 | 17.9 |
| Average daytime temperature (°C) | 2.7 | 6.4 | 15.2 | 18.9 | 24.7 | 27.9 | 29.8 | 30.6 | 26.6 | 19.7 | 11.1 | 5.5 |
| Average temperature (°C) | -1.9 | 1.0 | 8.2 | 12.9 | 18.6 | 22.5 | 25.8 | 26.3 | 22.5 | 14.5 | 6.5 | 1.4 |
| Average night temperature (°C) | -6.7 | -3.1 | 2.8 | 7.9 | 13.5 | 18.3 | 22.8 | 22.9 | 19.1 | 10.0 | 2.0 | -2.2 |
| Absolute minimum temperature (°C) | -15.8 | -6.3 | -3.3 | 1.9 | 5.1 | 14.5 | 20.0 | 17.1 | 12.9 | 4.8 | -6.9 | -13.1 |
| 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 | 11.2 | 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 | 8.6 | 9.9 | 7.5 | 8.7 | 7.2 | 8.3 | 7.0 | 5.6 |
| Precipitation (mm) | 27 | 1 | 15 | 59 | 114 | 101 | 407 | 264 | 236 | 17 | 81 | 90 |
| Sunny days | 21 | 25 | 25 | 15 | 20 | 15 | 8 | 9 | 11 | 20 | 16 | 15 |
| Rainy days | 7 | 3 | 6 | 15 | 11 | 15 | 23 | 22 | 19 | 11 | 14 | 11 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The best time to visit Wŏnnam during the most sunny months:
The largest precipitation sum in Wŏnnam is at