Average annual temperature is 14.8 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: -13.6 °C
Number of sunny days: 207 days
Number of rainy days: 156 days
Number of snow days: 2 days
Look at detailed online map of Gulsan
* Weather data for Gulsan 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) | 16.6 | 16.1 | 25.6 | 29.2 | 34.1 | 35.6 | 35.7 | 37.4 | 30.6 | 24.4 | 27.7 | 20.0 |
| Average daytime temperature (°C) | 6.3 | 9.6 | 16.9 | 19.2 | 23.2 | 27.6 | 30.2 | 30.5 | 26.2 | 21.5 | 14.3 | 8.3 |
| Average temperature (°C) | 1.3 | 4.3 | 10.9 | 14.2 | 18.6 | 23.1 | 26.3 | 26.8 | 23.0 | 15.9 | 8.9 | 3.7 |
| Average night temperature (°C) | -2.5 | 0.0 | 5.9 | 9.7 | 14.5 | 19.5 | 23.3 | 23.8 | 20.1 | 11.2 | 4.1 | 0.0 |
| Absolute minimum temperature (°C) | -13.6 | -4.5 | -1.7 | 3.7 | 8.0 | 15.1 | 18.8 | 20.7 | 13.6 | 5.7 | -5.2 | -10.1 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.8 | 7.3 | 9.2 | 8.8 | 8.4 | 9.9 | 8.9 | 9.3 | 7.4 | 8.8 | 8.0 | 7.2 |
| Precipitation (mm) | 38 | 29 | 63 | 56 | 168 | 143 | 287 | 211 | 250 | 2 | 39 | 97 |
| Sunny days | 25 | 18 | 21 | 16 | 18 | 13 | 3 | 10 | 8 | 26 | 24 | 25 |
| Rainy days | 4 | 10 | 10 | 14 | 13 | 17 | 28 | 21 | 22 | 5 | 6 | 6 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Gulsan is at