Average annual temperature is 10.6 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: -19.6 °C
Number of sunny days: 162 days
Number of rainy days: 180 days
Number of snow days: 23 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) | 12.7 | 12.3 | 19.3 | 22.5 | 27.2 | 29.0 | 30.9 | 30.8 | 26.7 | 20.2 | 22.2 | 14.8 |
| Average daytime temperature (°C) | 1.0 | 5.1 | 12.7 | 15.0 | 19.5 | 24.5 | 26.5 | 27.3 | 23.2 | 16.6 | 9.1 | 3.4 |
| Average temperature (°C) | -3.6 | -0.6 | 6.4 | 9.4 | 14.7 | 19.6 | 22.7 | 23.3 | 19.3 | 11.5 | 4.1 | -0.9 |
| Average night temperature (°C) | -7.3 | -4.4 | 1.4 | 4.5 | 10.6 | 15.6 | 20.0 | 20.2 | 16.1 | 7.4 | -0.2 | -4.3 |
| Absolute minimum temperature (°C) | -19.6 | -10.4 | -6.4 | -2.7 | 3.8 | 12.2 | 16.4 | 16.4 | 10.9 | 2.3 | -10.6 | -15.3 |
| 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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 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) | 7.1 | 7.4 | 8.8 | 7.9 | 7.9 | 9.4 | 6.9 | 9.0 | 7.4 | 8.9 | 7.5 | 6.0 |
| Precipitation (mm) | 42 | 20 | 42 | 67 | 131 | 151 | 402 | 325 | 175 | 8 | 75 | 103 |
| Sunny days | 17 | 18 | 21 | 13 | 15 | 11 | 3 | 3 | 8 | 21 | 18 | 14 |
| Rainy days | 5 | 4 | 10 | 17 | 16 | 19 | 28 | 28 | 22 | 10 | 11 | 10 |
| Snow days | 9 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 |
The largest precipitation sum in Oesan is at