Average annual temperature is 14.7 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: -13.7 °C
Number of sunny days: 218 days
Number of rainy days: 144 days
Number of snow days: 3 days
Look at detailed online map of Yonhai
* Weather data for Yonhai 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) | 16.0 | 14.6 | 22.6 | 28.2 | 30.0 | 31.5 | 33.9 | 33.2 | 29.9 | 23.7 | 25.9 | 19.2 |
| Average daytime temperature (°C) | 5.5 | 8.7 | 15.3 | 17.9 | 21.4 | 25.6 | 28.3 | 28.7 | 25.7 | 20.6 | 13.6 | 7.7 |
| Average temperature (°C) | 1.7 | 4.7 | 10.6 | 13.8 | 18.0 | 22.4 | 25.4 | 26.2 | 23.0 | 16.5 | 9.3 | 4.1 |
| Average night temperature (°C) | -2.0 | 1.3 | 6.5 | 9.9 | 14.8 | 19.5 | 23.0 | 23.9 | 20.6 | 13.0 | 5.2 | 1.0 |
| Absolute minimum temperature (°C) | -13.7 | -3.1 | -1.5 | 4.1 | 8.6 | 15.9 | 19.0 | 22.1 | 15.9 | 7.7 | -4.5 | -10.0 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 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) | 7.7 | 7.1 | 8.9 | 8.8 | 8.7 | 10.1 | 8.5 | 9.4 | 7.0 | 8.7 | 7.8 | 7.0 |
| Precipitation (mm) | 40 | 31 | 55 | 61 | 180 | 176 | 286 | 196 | 252 | 15 | 42 | 123 |
| Sunny days | 25 | 16 | 25 | 17 | 20 | 14 | 9 | 13 | 8 | 24 | 23 | 24 |
| Rainy days | 4 | 11 | 6 | 13 | 11 | 16 | 22 | 18 | 22 | 7 | 7 | 7 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Yonhai is at