Average annual temperature is 14.4 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 171 days
Number of rainy days: 181 days
Number of snow days: 13 days
Look at detailed online map of Yeosan
* Weather data for Yeosan 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) | 15.7 | 10.9 | 22.4 | 23.5 | 26.6 | 28.7 | 31.8 | 33.1 | 30.7 | 22.9 | 23.2 | 17.2 |
| Average daytime temperature (°C) | 4.9 | 5.8 | 12.5 | 16.9 | 21.0 | 24.8 | 28.2 | 29.7 | 26.3 | 20.0 | 13.0 | 7.7 |
| Average temperature (°C) | 1.8 | 2.6 | 8.1 | 12.7 | 17.4 | 21.6 | 25.5 | 26.8 | 23.4 | 16.8 | 10.0 | 4.9 |
| Average night temperature (°C) | -2.1 | -0.3 | 4.5 | 9.0 | 14.3 | 19.2 | 23.5 | 24.3 | 20.6 | 13.5 | 6.4 | 1.9 |
| Absolute minimum temperature (°C) | -12.1 | -4.6 | -1.7 | 3.8 | 8.1 | 15.9 | 21.2 | 20.4 | 17.1 | 9.1 | -1.5 | -8.8 |
| 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) | 6.4 | 7.3 | 8.8 | 7.6 | 7.6 | 9.3 | 6.9 | 9.6 | 7.9 | 8.1 | 6.2 | 4.3 |
| Precipitation (mm) | 47 | 10 | 24 | 91 | 156 | 147 | 635 | 179 | 193 | 22 | 89 | 128 |
| Sunny days | 15 | 22 | 25 | 14 | 15 | 15 | 3 | 6 | 11 | 19 | 14 | 12 |
| Rainy days | 8 | 6 | 6 | 16 | 16 | 15 | 28 | 25 | 19 | 12 | 16 | 14 |
| Snow days | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
The best time to visit Yeosan during the most sunny months:
The largest precipitation sum in Yeosan is at