Ulsan Weather Year-Round — Best Time to Visit
Ulsan, South Korea has mild weather year-round. The best time to visit is May (score: 82/100). Annual average high: 18°C, total rainfall: 1213mm.
When is the best time to visit Ulsan?
82
May is the best month to visit Ulsan with a travel score of 82/100 (Excellent).
Expect highs of 22.1°C, 8 rain days, and 10 hours of daily sunshine.
View May weather details →Travel Score by Month
64
Jan
67
Feb
70
Mar
77
Apr
82
May
81
Jun
73
Jul
73
Aug
76
Sep
81
Oct
74
Nov
69
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Ulsan each month?
18°C
Avg High
10.3°C
Avg Low
1213mm
Annual Rain
How much rain does Ulsan get?
Ulsan receives 1213mm of rain annually. The wettest month is typically July with 219mm, while December is the driest.
What is the weather like each month in Ulsan?
January
64
6°C
Low: -2°C
4 rain days
Good
February
67
8°C
Low: 0°C
5 rain days
Good
March
70
13°C
Low: 3°C
7 rain days
Good
April
77
18°C
Low: 8°C
7 rain days
Good
May
Best time to visit82
22°C
Low: 13°C
8 rain days
Excellent
June
81
25°C
Low: 18°C
9 rain days
Excellent
July
73
28°C
Low: 22°C
13 rain days
Good
August
73
29°C
Low: 23°C
14 rain days
Good
September
76
25°C
Low: 19°C
11 rain days
Good
October
81
20°C
Low: 13°C
6 rain days
Excellent
November
74
15°C
Low: 6°C
5 rain days
Good
December
69
8°C
Low: 0°C
3 rain days
Good
Compare Ulsan
Popular comparisons:
Planning a Trip to South Korea?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
🏛️ 121 countries·📅 Updated yearly·✈️ Free forever
What cities are near Ulsan?
Data based on 1994–2024 averages · Last updated: 2024-12-31