27.04
mon
mon
Day
61°F
NE 7 mph
Precip.
0%
0%
Night
54°F
NE 13 mph
Precip.
88%
88%
28.04
tue
tue
Day
54°F
E 19 mph
Precip.
0%
0%
Night
52°F
SE 9 mph
Precip.
0%
0%
29.04
wed
wed
Day
57°F
E 8 mph
Precip.
0%
0%
Night
55°F
SE 4 mph
Precip.
0%
0%
30.04
thu
thu
Day
59°F
NE 7 mph
Precip.
0%
0%
Night
55°F
E 5 mph
Precip.
0%
0%
01.05
fri
fri
Day
59°F
NE 10 mph
Precip.
0%
0%
Night
55°F
NE 7 mph
Precip.
0%
0%
02.05
sat
sat
Day
61°F
NE 9 mph
Precip.
0%
0%
Night
57°F
N 5 mph
Precip.
0%
0%
03.05
sun
sun
Day
61°F
NE 7 mph
Precip.
0%
0%
Night
55°F
SE 8 mph
Precip.
0%
0%
04.05
mon
mon
Day
61°F
E 12 mph
Precip.
0%
0%
Night
55°F
NE 8 mph
Precip.
0%
0%
05.05
tue
tue
Day
63°F
NE 4 mph
Precip.
0%
0%
Night
61°F
N 4 mph
Precip.
0%
0%
06.05
wed
wed
Day
64°F
NE 6 mph
Precip.
0%
0%
Night
59°F
N 4 mph
Precip.
0%
0%
07.05
thu
thu
Day
64°F
NE 7 mph
Precip.
0%
0%
Night
64°F
S 3 mph
Precip.
0%
0%
08.05
fri
fri
Day
66°F
SW 11 mph
Precip.
0%
0%
Night
61°F
W 9 mph
Precip.
0%
0%
09.05
sat
sat
Day
68°F
W 3 mph
Precip.
0%
0%
Night
64°F
NW 7 mph
Precip.
0%
0%
10.05
sun
sun
Day
70°F
NW 3 mph
Precip.
0%
0%
Night
66°F
NE 9 mph
Precip.
0%
0%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 51.0°F. The highest and lowest sea temperatures during the month were 55.8°F and 46.9°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 58.9°F. The highest and lowest sea temperatures during the month were 64.8°F and 53.1°F.
Air temperature in Incheon, °F
Precipitation total in Incheon, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Incheon
Incheon on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Incheon
Local time: 23:13
April 28, tuesday
0000
54°F
NE
13 mph
13 mph
0300
54°F
NE
12 mph
12 mph
0600
52°F
E
11 mph
11 mph
0900
52°F
E
17 mph
17 mph
1200
54°F
E
19 mph
19 mph
1500
54°F
E
22 mph
22 mph
1800
55°F
E
21 mph
21 mph
2100
54°F
E
15 mph
15 mph
