29.12
mon
mon
Day
43°F
E 13 mph
Precip.
0%
0%
Night
34°F
SE 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
37°F
E 11 mph
Precip.
0%
0%
Night
23°F
SE 19 mph
Precip.
0%
0%
31.12
wed
wed
Day
23°F
SE 17 mph
Precip.
0%
0%
Night
19°F
SE 20 mph
Precip.
0%
0%
01.01
thu
thu
Day
21°F
SE 14 mph
Precip.
0%
0%
Night
25°F
S 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
37°F
E 12 mph
Precip.
75%
75%
Night
32°F
SE 14 mph
Precip.
0%
0%
03.01
sat
sat
Day
28°F
SE 14 mph
Precip.
0%
0%
Night
27°F
S 7 mph
Precip.
0%
0%
04.01
sun
sun
Day
30°F
SE 1 mph
Precip.
0%
0%
Night
30°F
S 3 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 47.0°F. The highest and lowest sea temperatures during the month were 52.5°F and 42.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 37.9°F. The highest and lowest sea temperatures during the month were 41.2°F and 35.4°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: 00:53
December 29, monday
0300
43°F
NE
15 mph
15 mph
0600
45°F
E
14 mph
14 mph
0900
43°F
E
11 mph
11 mph
1200
43°F
E
13 mph
13 mph
1500
41°F
E
14 mph
14 mph
1800
39°F
SE
9 mph
9 mph
2100
36°F
S
9 mph
9 mph
December 30, tuesday
0000
34°F
SE
9 mph
9 mph
