Average annual temperature is 9.3 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -20.9 °C
Number of sunny days: 177 days
Number of rainy days: 162 days
Number of snow days: 26 days
Look at detailed online map of Wŏllu
* Weather data for Wŏllu 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) | 10.0 | 9.6 | 19.3 | 21.5 | 25.6 | 27.4 | 29.6 | 30.6 | 26.7 | 18.7 | 19.7 | 12.3 |
| Average daytime temperature (°C) | -0.7 | 3.5 | 11.2 | 13.5 | 18.6 | 23.0 | 26.0 | 26.2 | 22.2 | 15.4 | 7.2 | 0.8 |
| Average temperature (°C) | -5.2 | -1.4 | 5.0 | 8.3 | 13.8 | 18.3 | 22.2 | 22.2 | 18.2 | 10.3 | 2.4 | -3.0 |
| Average night temperature (°C) | -9.3 | -5.0 | -0.2 | 3.6 | 9.0 | 14.0 | 19.1 | 19.2 | 15.0 | 6.0 | -1.7 | -6.2 |
| Absolute minimum temperature (°C) | -20.9 | -8.4 | -8.5 | -4.3 | 2.2 | 9.3 | 15.7 | 14.4 | 8.3 | -0.5 | -11.3 | -18.4 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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 | 7.7 | 9.1 | 8.2 | 8.9 | 9.9 | 7.7 | 8.4 | 7.2 | 8.3 | 6.9 | 6.0 |
| Precipitation (mm) | 35 | 9 | 25 | 79 | 102 | 154 | 401 | 236 | 209 | 18 | 52 | 106 |
| Sunny days | 20 | 18 | 23 | 15 | 17 | 8 | 7 | 11 | 8 | 18 | 16 | 16 |
| Rainy days | 3 | 1 | 8 | 15 | 14 | 22 | 24 | 20 | 22 | 12 | 11 | 10 |
| Snow days | 8 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 5 |
The largest precipitation sum in Wŏllu is at