Average annual temperature is 13.3 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 174 days
Number of rainy days: 181 days
Number of snow days: 10 days
Look at detailed online map of Wŏlnam
* Weather data for Wŏlnam 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) | 15.4 | 14.3 | 21.5 | 26.2 | 30.2 | 32.7 | 33.5 | 33.7 | 29.2 | 22.7 | 25.1 | 16.9 |
| Average daytime temperature (°C) | 4.4 | 7.9 | 15.6 | 17.8 | 22.1 | 27.4 | 28.6 | 29.7 | 25.7 | 19.6 | 11.9 | 6.2 |
| Average temperature (°C) | -0.1 | 2.6 | 9.4 | 12.0 | 17.3 | 22.1 | 24.8 | 25.5 | 21.7 | 14.4 | 6.9 | 2.1 |
| Average night temperature (°C) | -3.6 | -1.1 | 4.4 | 7.1 | 13.0 | 17.8 | 22.1 | 22.5 | 18.6 | 10.1 | 2.6 | -1.1 |
| Absolute minimum temperature (°C) | -15.6 | -6.6 | -4.0 | 0.5 | 7.1 | 14.1 | 17.7 | 19.3 | 14.4 | 4.9 | -7.2 | -12.0 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 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) | 7.6 | 7.6 | 8.8 | 8.2 | 8.1 | 9.5 | 7.1 | 9.3 | 7.4 | 8.9 | 7.7 | 6.6 |
| Precipitation (mm) | 37 | 21 | 43 | 72 | 157 | 167 | 398 | 372 | 212 | 9 | 72 | 97 |
| Sunny days | 23 | 18 | 20 | 13 | 15 | 10 | 0 | 7 | 7 | 20 | 21 | 20 |
| Rainy days | 6 | 5 | 11 | 17 | 16 | 20 | 31 | 24 | 23 | 11 | 9 | 8 |
| Snow days | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
The largest precipitation sum in Wŏlnam is at