Average annual temperature is 14.4 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 191 days
Number of rainy days: 171 days
Number of snow days: 3 days
Look at detailed online map of Yŏsu
* Weather data for Yŏsu 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) | 16.4 | 15.0 | 23.6 | 27.7 | 31.0 | 32.3 | 34.1 | 36.1 | 30.3 | 23.2 | 24.6 | 18.5 |
| Average daytime temperature (°C) | 6.2 | 9.9 | 17.5 | 19.4 | 23.0 | 27.7 | 29.6 | 30.9 | 27.0 | 20.9 | 13.6 | 8.2 |
| Average temperature (°C) | 1.1 | 4.1 | 10.6 | 13.5 | 17.8 | 22.4 | 25.7 | 26.7 | 22.9 | 15.3 | 8.2 | 3.6 |
| Average night temperature (°C) | -3.0 | -0.4 | 5.1 | 8.1 | 13.1 | 18.2 | 22.7 | 23.6 | 19.5 | 10.3 | 3.6 | -0.2 |
| Absolute minimum temperature (°C) | -13.6 | -5.1 | -2.4 | 1.1 | 6.7 | 13.7 | 18.9 | 21.6 | 13.9 | 4.8 | -5.1 | -9.7 |
| 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) | 7.7 | 7.6 | 8.8 | 8.2 | 7.9 | 8.8 | 6.7 | 8.8 | 7.2 | 8.6 | 7.8 | 6.8 |
| Precipitation (mm) | 40 | 30 | 64 | 70 | 194 | 169 | 346 | 284 | 206 | 9 | 56 | 91 |
| Sunny days | 24 | 20 | 22 | 17 | 14 | 10 | 4 | 3 | 11 | 24 | 21 | 21 |
| Rainy days | 5 | 8 | 9 | 13 | 17 | 20 | 27 | 28 | 19 | 7 | 9 | 9 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Yŏsu is at