Average annual temperature is 12.2 °C
Absolute maximum temperature: 33.5 °C
Absolute minimum temperature: -17.1 °C
Number of sunny days: 199 days
Number of rainy days: 154 days
Number of snow days: 12 days
Look at detailed online map of Gusan
* Weather data for Gusan 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) | 11.7 | 12.0 | 22.5 | 22.9 | 29.9 | 32.1 | 32.5 | 33.5 | 29.2 | 21.3 | 23.5 | 14.5 |
| Average daytime temperature (°C) | 2.3 | 7.0 | 15.1 | 17.2 | 22.4 | 26.5 | 28.2 | 29.3 | 25.3 | 18.3 | 10.2 | 4.1 |
| Average temperature (°C) | -2.0 | 1.4 | 8.2 | 11.3 | 17.0 | 21.3 | 24.2 | 25.1 | 20.9 | 12.6 | 5.2 | 0.0 |
| Average night temperature (°C) | -5.8 | -2.6 | 2.2 | 5.5 | 11.8 | 16.8 | 20.8 | 21.7 | 17.1 | 7.8 | 0.8 | -3.3 |
| Absolute minimum temperature (°C) | -17.1 | -6.7 | -5.1 | -0.9 | 3.5 | 12.4 | 17.1 | 15.5 | 11.1 | 1.9 | -8.1 | -14.0 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.3 | 7.8 | 9.3 | 8.6 | 8.9 | 10.1 | 7.6 | 9.2 | 7.7 | 8.7 | 7.7 | 6.2 |
| Precipitation (mm) | 34 | 8 | 25 | 98 | 141 | 190 | 513 | 257 | 195 | 12 | 45 | 99 |
| Sunny days | 21 | 23 | 24 | 16 | 19 | 11 | 6 | 8 | 11 | 22 | 17 | 21 |
| Rainy days | 5 | 3 | 7 | 14 | 12 | 19 | 25 | 23 | 19 | 9 | 11 | 7 |
| Snow days | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The largest precipitation sum in Gusan is at