Average annual temperature is 12.3 °C
Absolute maximum temperature: 34.1 °C
Absolute minimum temperature: -17.0 °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 Yangyŏn
* Weather data for Yangyŏn 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) | 12.0 | 11.6 | 26.1 | 24.5 | 31.4 | 32.2 | 33.0 | 34.1 | 29.6 | 21.6 | 23.0 | 16.6 |
| Average daytime temperature (°C) | 2.1 | 7.1 | 15.6 | 18.1 | 23.6 | 27.1 | 29.3 | 30.1 | 25.9 | 18.7 | 10.4 | 4.5 |
| Average temperature (°C) | -2.7 | 1.1 | 8.2 | 11.7 | 17.6 | 21.8 | 24.9 | 25.5 | 21.2 | 12.5 | 4.9 | -0.1 |
| Average night temperature (°C) | -7.2 | -3.2 | 1.4 | 5.8 | 11.8 | 16.8 | 21.2 | 21.7 | 17.3 | 7.0 | 0.1 | -4.0 |
| Absolute minimum temperature (°C) | -17.0 | -6.3 | -4.6 | -1.2 | 2.7 | 12.2 | 18.1 | 13.6 | 11.1 | 1.2 | -7.8 | -13.7 |
| 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 | 14.4 | 13.6 | 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) | 7.1 | 7.9 | 9.2 | 8.1 | 8.9 | 9.9 | 7.6 | 9.2 | 7.3 | 8.2 | 7.3 | 6.0 |
| Precipitation (mm) | 27 | 3 | 21 | 78 | 143 | 189 | 615 | 314 | 222 | 23 | 66 | 77 |
| Sunny days | 19 | 24 | 23 | 17 | 19 | 10 | 7 | 10 | 11 | 22 | 16 | 21 |
| Rainy days | 6 | 2 | 8 | 13 | 12 | 20 | 24 | 21 | 19 | 9 | 12 | 8 |
| Snow days | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The largest precipitation sum in Yangyŏn is at