Average annual temperature is 14.6 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -13.1 °C
Number of sunny days: 190 days
Number of rainy days: 172 days
Number of snow days: 3 days
Look at detailed online map of Oesan
* Weather data for Oesan 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) | 16.2 | 15.2 | 23.7 | 28.1 | 29.0 | 31.2 | 34.1 | 34.3 | 29.5 | 24.5 | 25.6 | 19.5 |
| Average daytime temperature (°C) | 6.8 | 10.2 | 16.4 | 18.4 | 21.9 | 26.5 | 29.4 | 30.3 | 26.7 | 21.3 | 14.6 | 9.0 |
| Average temperature (°C) | 1.2 | 4.5 | 10.6 | 13.6 | 17.6 | 22.2 | 25.9 | 26.7 | 23.0 | 15.6 | 9.1 | 3.9 |
| Average night temperature (°C) | -3.0 | 0.1 | 5.8 | 9.4 | 13.7 | 18.7 | 23.0 | 23.9 | 20.0 | 11.0 | 4.5 | 0.1 |
| Absolute minimum temperature (°C) | -13.1 | -5.0 | -3.2 | 1.1 | 7.1 | 15.5 | 19.1 | 21.8 | 14.3 | 4.0 | -5.1 | -9.3 |
| 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) | 7.8 | 7.6 | 9.0 | 8.3 | 8.0 | 8.5 | 7.9 | 9.6 | 7.8 | 8.9 | 8.0 | 7.1 |
| Precipitation (mm) | 86 | 44 | 71 | 106 | 298 | 221 | 211 | 328 | 182 | 5 | 26 | 114 |
| Sunny days | 25 | 18 | 19 | 16 | 14 | 13 | 3 | 5 | 6 | 24 | 25 | 22 |
| Rainy days | 5 | 10 | 12 | 14 | 17 | 17 | 28 | 26 | 24 | 7 | 5 | 7 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The largest precipitation sum in Oesan is at