Average annual temperature is 14.1 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -14.6 °C
Number of sunny days: 191 days
Number of rainy days: 163 days
Number of snow days: 11 days
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) | 14.9 | 12.9 | 26.8 | 28.7 | 31.2 | 37.2 | 33.3 | 35.4 | 31.1 | 23.2 | 24.9 | 18.8 |
| Average daytime temperature (°C) | 4.8 | 8.2 | 17.2 | 20.1 | 24.9 | 29.5 | 29.4 | 31.0 | 27.0 | 20.5 | 12.5 | 7.0 |
| Average temperature (°C) | -0.4 | 2.0 | 9.5 | 13.6 | 18.8 | 23.4 | 25.7 | 26.8 | 22.8 | 15.1 | 7.8 | 2.8 |
| Average night temperature (°C) | -5.0 | -2.8 | 3.3 | 8.0 | 13.8 | 18.9 | 23.0 | 23.4 | 19.5 | 10.5 | 3.3 | -0.9 |
| Absolute minimum temperature (°C) | -14.6 | -6.6 | -4.2 | 0.9 | 5.4 | 15.0 | 20.2 | 17.4 | 13.9 | 5.4 | -4.8 | -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) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.5 | 9.2 | 7.8 | 8.3 | 10.0 | 7.0 | 9.3 | 7.2 | 8.7 | 7.1 | 5.6 |
| Precipitation (mm) | 35 | 4 | 25 | 78 | 158 | 241 | 578 | 364 | 237 | 14 | 88 | 126 |
| Sunny days | 20 | 23 | 22 | 14 | 19 | 11 | 5 | 7 | 12 | 25 | 17 | 16 |
| Rainy days | 8 | 4 | 9 | 16 | 12 | 19 | 26 | 24 | 18 | 6 | 12 | 9 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
The best time to visit Gwansan during the most sunny months:
The largest precipitation sum in Gwansan is at