Average annual temperature is 14.2 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -14.0 °C
Number of sunny days: 208 days
Number of rainy days: 156 days
Number of snow days: 1 day
Look at detailed online map of Gwansan
* Weather data for Gwansan 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) | 16.8 | 17.5 | 25.0 | 28.3 | 34.9 | 36.4 | 35.2 | 36.4 | 30.7 | 23.3 | 27.8 | 18.8 |
| Average daytime temperature (°C) | 5.8 | 9.7 | 18.5 | 20.3 | 24.4 | 30.1 | 30.1 | 31.3 | 26.9 | 21.0 | 13.6 | 7.6 |
| Average temperature (°C) | 0.1 | 3.3 | 10.7 | 13.6 | 18.5 | 23.7 | 25.8 | 26.8 | 22.6 | 14.8 | 7.6 | 2.4 |
| Average night temperature (°C) | -4.4 | -1.9 | 4.0 | 7.5 | 13.2 | 18.6 | 22.5 | 23.2 | 18.9 | 9.5 | 2.6 | -1.9 |
| Absolute minimum temperature (°C) | -14.0 | -5.9 | -3.0 | 1.8 | 4.5 | 13.8 | 17.7 | 19.3 | 13.3 | 4.9 | -5.3 | -10.3 |
| 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) | 7.7 | 7.6 | 9.0 | 8.3 | 8.2 | 9.8 | 7.3 | 9.5 | 7.6 | 8.9 | 7.9 | 6.6 |
| Precipitation (mm) | 40 | 16 | 39 | 73 | 147 | 150 | 313 | 282 | 183 | 6 | 49 | 90 |
| Sunny days | 25 | 17 | 22 | 15 | 16 | 15 | 7 | 10 | 12 | 23 | 21 | 25 |
| Rainy days | 5 | 11 | 9 | 15 | 15 | 15 | 24 | 21 | 18 | 8 | 9 | 6 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gwansan is at