Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 187 days
Number of rainy days: 175 days
Number of snow days: 3 days
Look at detailed online map of Goesan
* Weather data for Goesan 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) | 14.9 | 14.0 | 22.9 | 26.8 | 31.4 | 33.1 | 33.1 | 35.4 | 30.0 | 22.2 | 24.1 | 17.4 |
| Average daytime temperature (°C) | 5.0 | 8.5 | 16.5 | 18.3 | 22.4 | 27.4 | 28.6 | 30.0 | 26.0 | 19.9 | 12.3 | 6.8 |
| Average temperature (°C) | 0.0 | 3.0 | 10.0 | 12.6 | 17.3 | 22.0 | 24.8 | 25.8 | 22.0 | 15.0 | 7.5 | 2.6 |
| Average night temperature (°C) | -3.7 | -1.0 | 4.8 | 7.6 | 13.1 | 17.9 | 22.1 | 22.9 | 19.0 | 11.1 | 3.4 | -0.5 |
| Absolute minimum temperature (°C) | -15.3 | -6.7 | -3.1 | 0.1 | 6.3 | 14.5 | 17.3 | 20.9 | 14.8 | 5.3 | -6.6 | -11.6 |
| 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 | 8.9 | 8.2 | 8.1 | 9.3 | 7.2 | 9.3 | 7.5 | 8.8 | 7.8 | 6.9 |
| Precipitation (mm) | 35 | 26 | 63 | 86 | 163 | 204 | 411 | 346 | 255 | 9 | 55 | 87 |
| Sunny days | 25 | 20 | 20 | 13 | 15 | 10 | 3 | 4 | 9 | 24 | 22 | 22 |
| Rainy days | 4 | 8 | 11 | 17 | 16 | 20 | 28 | 27 | 21 | 7 | 8 | 8 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Goesan is at