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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 - 10th September 2026

Sunrise 06:01

Sunrise

Sunset 18:37

Sunset
21:00
Patchy rain possible
17°C (62°F)
22:00
Patchy rain possible
17°C (62°F)
23:00
Patchy rain possible
18°C (63°F)

Tomorrow - 11th September 2026

Sunrise 06:01

Sunrise

Sunset 18:37

Sunset
0:00
Cloudy
18°C (63°F)
1:00
Patchy rain possible
17°C (63°F)
2:00
Overcast
17°C (63°F)
3:00
Overcast
17°C (62°F)
4:00
Overcast
18°C (64°F)
5:00
Overcast
18°C (64°F)
6:00
Overcast
18°C (64°F)
7:00
Overcast
18°C (64°F)
8:00
Overcast
20°C (67°F)
9:00
Partly cloudy
21°C (69°F)
10:00
Overcast
22°C (71°F)
11:00
Overcast
22°C (71°F)
12:00
Overcast
24°C (74°F)
13:00
Patchy rain possible
25°C (76°F)
14:00
Patchy rain possible
23°C (73°F)
15:00
Patchy rain possible
24°C (75°F)
16:00
Overcast
24°C (74°F)
17:00
Cloudy
24°C (74°F)
18:00
Cloudy
22°C (70°F)
19:00
Overcast
20°C (66°F)
20:00
Overcast
19°C (65°F)
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