Average annual temperature is 14.6 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -12.8 °C
Number of sunny days: 195 days
Number of rainy days: 169 days
Number of snow days: 1 day
Look at detailed online map of Ulsan
* Weather data for Ulsan 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) | 17.1 | 15.7 | 25.8 | 30.0 | 30.8 | 33.1 | 34.0 | 34.7 | 29.7 | 24.8 | 27.5 | 20.5 |
| Average daytime temperature (°C) | 7.3 | 10.7 | 17.4 | 19.5 | 22.6 | 27.3 | 29.9 | 30.5 | 26.8 | 21.8 | 15.2 | 9.3 |
| Average temperature (°C) | 1.2 | 4.5 | 10.7 | 14.0 | 17.8 | 22.6 | 26.1 | 26.8 | 23.0 | 15.1 | 8.5 | 3.6 |
| Average night temperature (°C) | -3.3 | -0.4 | 5.0 | 8.7 | 13.1 | 18.5 | 22.7 | 23.5 | 19.7 | 9.5 | 2.9 | -1.1 |
| Absolute minimum temperature (°C) | -12.8 | -6.3 | -3.6 | 0.8 | 4.5 | 14.5 | 18.2 | 21.5 | 14.4 | 2.6 | -4.8 | -9.2 |
| 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 | 7.5 | 9.1 | 8.6 | 7.9 | 8.8 | 8.3 | 9.6 | 7.6 | 8.8 | 8.0 | 7.1 |
| Precipitation (mm) | 61 | 42 | 67 | 72 | 223 | 195 | 221 | 244 | 166 | 4 | 34 | 97 |
| Sunny days | 25 | 18 | 20 | 18 | 16 | 13 | 4 | 3 | 6 | 24 | 23 | 25 |
| Rainy days | 5 | 10 | 11 | 12 | 15 | 17 | 27 | 28 | 24 | 7 | 7 | 6 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ulsan is at