Climate of Ulsan, South Korea
Area-weighted average across Ulsan. For where people actually live and travel, see the cities below.
Ulsan, a subdivision of Korea, Republic of, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from 1°C / 33.8°F in January to 24.8°C / 76.6°F in August, with rainfall from 24 mm / 0.9 in to 240 mm / 9.4 in depending on the season (1287 mm / 50.7 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 1°C33.8°F | 34 mm1.3″ | Snowy |
| February | 2.6°C36.7°F | 44 mm1.7″ | — |
| March | 6.7°C44.1°F | 68 mm2.7″ | — |
| April | 12.3°C54.1°F | 108 mm4.3″ | — |
| May | 16.7°C62.1°F | 110 mm4.3″ | — |
| June | 20.1°C68.2°F | 184 mm7.2″ | — |
| July | 23.9°C75°F | 240 mm9.4″ | — |
| August | 24.8°C76.6°F | 215 mm8.5″ | — |
| September | 20.4°C68.7°F | 153 mm6″ | — |
| October | 15.2°C59.4°F | 57 mm2.2″ | — |
| November | 9.1°C48.4°F | 50 mm2″ | — |
| December | 3.5°C38.3°F | 24 mm0.9″ | — |
Frequently asked questions
What is the best time to visit Ulsan?
Ulsan, Korea, Republic of does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 24.8°C / 76.6°F, and the driest is December at 24 mm / 0.9 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Ulsan?
Ulsan, Korea, Republic of has area-weighted monthly average temperatures ranging from 1°C / 33.8°F in January to 24.8°C / 76.6°F in August. Annual rainfall averages about 1287 mm / 50.7 in, with the wettest month being July (240 mm / 9.4 in) and the driest December (24 mm / 0.9 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Ulsan?
The hottest month in Ulsan is August, with an area-wide average temperature of 24.8°C / 76.6°F.
What is the coldest month in Ulsan?
The coldest month in Ulsan is January, with an area-wide average temperature of 1°C / 33.8°F.
When does it rain most in Ulsan?
The wettest month in Ulsan is July, averaging about 240 mm / 9.4 in of rainfall. The driest is December with about 24 mm / 0.9 in.