Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -15.8 °C
Number of sunny days: 153 days
Number of rainy days: 194 days
Number of snow days: 18 days
Look at detailed online map of Yangseon
* Weather data for Yangseon 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) | 14.3 | 11.6 | 21.2 | 24.2 | 28.5 | 30.6 | 31.0 | 33.0 | 28.9 | 20.8 | 22.0 | 17.1 |
| Average daytime temperature (°C) | 2.8 | 6.6 | 14.4 | 16.7 | 21.3 | 25.7 | 27.3 | 29.0 | 25.3 | 18.2 | 10.5 | 5.2 |
| Average temperature (°C) | -1.3 | 1.4 | 8.4 | 11.4 | 16.7 | 20.7 | 23.9 | 24.8 | 21.2 | 13.2 | 6.0 | 1.6 |
| Average night temperature (°C) | -5.1 | -2.2 | 3.9 | 6.7 | 12.8 | 17.0 | 21.2 | 21.6 | 17.8 | 9.0 | 2.1 | -1.4 |
| Absolute minimum temperature (°C) | -15.8 | -7.5 | -4.5 | -0.9 | 4.4 | 12.7 | 19.0 | 17.6 | 12.6 | 4.9 | -7.7 | -12.7 |
| 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 | 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) | 6.9 | 7.3 | 8.8 | 7.5 | 8.0 | 9.2 | 6.7 | 9.4 | 7.6 | 8.7 | 7.3 | 5.7 |
| Precipitation (mm) | 49 | 17 | 50 | 108 | 175 | 202 | 546 | 344 | 179 | 15 | 96 | 134 |
| Sunny days | 14 | 19 | 21 | 13 | 14 | 9 | 0 | 4 | 10 | 21 | 15 | 13 |
| Rainy days | 7 | 7 | 10 | 17 | 17 | 21 | 31 | 27 | 20 | 10 | 15 | 12 |
| Snow days | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
The largest precipitation sum in Yangseon is at