Average annual temperature is 14.1 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 198 days
Number of rainy days: 165 days
Number of snow days: 2 days
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) | 16.2 | 14.6 | 23.2 | 26.8 | 31.0 | 32.5 | 34.2 | 35.9 | 29.4 | 22.4 | 24.8 | 18.1 |
| Average daytime temperature (°C) | 5.3 | 9.0 | 16.8 | 18.9 | 22.6 | 27.4 | 29.3 | 30.5 | 26.4 | 20.4 | 13.0 | 7.5 |
| Average temperature (°C) | 0.7 | 3.8 | 10.4 | 13.3 | 17.6 | 22.2 | 25.4 | 26.4 | 22.6 | 15.3 | 8.0 | 3.4 |
| Average night temperature (°C) | -3.1 | -0.3 | 5.2 | 8.3 | 13.3 | 18.2 | 22.5 | 23.3 | 19.3 | 10.9 | 3.5 | -0.2 |
| Absolute minimum temperature (°C) | -14.2 | -5.4 | -2.7 | 2.3 | 6.0 | 14.6 | 19.0 | 20.4 | 14.8 | 5.9 | -5.7 | -10.6 |
| 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) | 10.1 | 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) | 7.7 | 7.4 | 9.0 | 8.3 | 8.0 | 8.9 | 6.9 | 8.7 | 7.1 | 8.6 | 7.8 | 6.8 |
| Precipitation (mm) | 35 | 29 | 58 | 69 | 172 | 144 | 287 | 253 | 210 | 7 | 53 | 92 |
| Sunny days | 24 | 20 | 22 | 17 | 16 | 10 | 5 | 6 | 10 | 25 | 22 | 21 |
| Rainy days | 6 | 8 | 9 | 13 | 15 | 20 | 26 | 25 | 20 | 6 | 8 | 9 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The largest precipitation sum in Ulsan is at