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Ulsan, South Korea Weather Averages

August is the hottest month in Ulsan with an average temperature of 27°C (80°F) and the coldest is January at 2°C (36°F). The wettest month is July with an average of 260mm of rain..

Average Temperature Ulsan

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Ulsan

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Ulsan

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Ulsan : Next 24-Hour Weather

Today - 14th July 2026

Sunrise 05:18

Sunrise

Sunset 19:39

Sunset
18:00
Clear
30°C (85°F)
19:00
Clear
28°C (82°F)
20:00
Clear
26°C (79°F)
21:00
Clear
25°C (77°F)
22:00
Partly cloudy
25°C (76°F)
23:00
Partly cloudy
25°C (76°F)

Tomorrow - 15th July 2026

Sunrise 05:18

Sunrise

Sunset 19:39

Sunset
0:00
Partly cloudy
26°C (78°F)
1:00
Partly cloudy
27°C (79°F)
2:00
Patchy rain possible
27°C (79°F)
3:00
Patchy rain possible
27°C (80°F)
4:00
Patchy rain possible
27°C (80°F)
5:00
Patchy rain possible
27°C (80°F)
6:00
Patchy rain possible
27°C (80°F)
7:00
Light rain shower
27°C (80°F)
8:00
Patchy rain possible
27°C (80°F)
9:00
Patchy rain possible
27°C (80°F)
10:00
Patchy rain possible
28°C (81°F)
11:00
Overcast
29°C (83°F)
12:00
Cloudy
29°C (83°F)
13:00
Cloudy
29°C (84°F)
14:00
Patchy rain possible
29°C (84°F)
15:00
Patchy rain possible
29°C (84°F)
16:00
Patchy rain possible
29°C (84°F)
17:00
Patchy rain possible
29°C (84°F)