Average annual temperature is 14.7 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -11.1 °C
Number of sunny days: 188 days
Number of rainy days: 175 days
Number of snow days: 2 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) | 15.5 | 13.1 | 23.1 | 23.9 | 24.0 | 28.7 | 30.6 | 33.5 | 29.9 | 23.9 | 23.6 | 18.5 |
| Average daytime temperature (°C) | 6.3 | 9.4 | 15.8 | 17.6 | 20.7 | 25.0 | 27.1 | 29.4 | 26.7 | 20.8 | 14.0 | 8.8 |
| Average temperature (°C) | 2.1 | 4.3 | 10.5 | 13.5 | 17.3 | 21.7 | 24.7 | 26.6 | 23.7 | 16.8 | 9.9 | 5.2 |
| Average night temperature (°C) | -1.9 | 0.5 | 6.3 | 10.0 | 14.2 | 19.1 | 22.6 | 24.2 | 21.1 | 13.3 | 6.2 | 1.6 |
| Absolute minimum temperature (°C) | -11.1 | -3.8 | -0.8 | 4.3 | 7.8 | 16.4 | 20.6 | 21.0 | 15.2 | 9.1 | -1.8 | -6.4 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 7.1 | 8.6 | 7.7 | 7.6 | 8.3 | 6.9 | 10.3 | 8.4 | 8.7 | 8.0 | 6.7 |
| Precipitation (mm) | 59 | 50 | 42 | 126 | 281 | 216 | 303 | 314 | 185 | 18 | 76 | 74 |
| Sunny days | 25 | 20 | 23 | 14 | 12 | 10 | 2 | 9 | 8 | 24 | 21 | 20 |
| Rainy days | 6 | 8 | 8 | 16 | 19 | 20 | 29 | 22 | 22 | 7 | 9 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Oesan during the most sunny months:
The largest precipitation sum in Oesan is at