Measurements:
°C
°F
Incheon
70°F
S 4 mph
Feels like: 70°F
Precip: 2%
World Resorts South Korea Incheon Weather

14 Day Weather Forecast

09.29
tue
DAY
78°F
E 2 mph
precip
1%
NIGHT
70°F
E 2 mph
precip
2%
09.30
wed
DAY
78°F
NE 9 mph
precip
1%
NIGHT
64°F
SE 12 mph
precip
5%
10.01
thu
DAY
72°F
E 14 mph
precip
0%
NIGHT
62°F
S 9 mph
precip
1%
10.02
fri
DAY
68°F
SE 12 mph
precip
0%
NIGHT
62°F
SE 4 mph
precip
10%
10.03
sat
DAY
74°F
E 2 mph
precip
1%
NIGHT
68°F
SE 2 mph
precip
2%
10.04
sun
DAY
72°F
NE 5 mph
precip
7%
NIGHT
66°F
S 6 mph
precip
3%
10.05
mon
DAY
74°F
W 3 mph
precip
10%
NIGHT
66°F
S 6 mph
precip
2%
10.06
tue
DAY
70°F
SE 9 mph
precip
1%
NIGHT
64°F
SW 3 mph
precip
1%
10.07
wed
DAY
70°F
N 7 mph
precip
1%
NIGHT
66°F
NE 4 mph
precip
1%
10.08
thu
DAY
70°F
NE 9 mph
precip
14%
NIGHT
70°F
NE 7 mph
precip
21%
10.09
fri
DAY
64°F
W 6 mph
precip
52%
NIGHT
62°F
SW 8 mph
precip
83%
10.10
sat
DAY
62°F
SW 8 mph
precip
40%
NIGHT
64°F
SW 6 mph
precip
20%
10.11
sun
DAY
72°F
W 6 mph
precip
12%
NIGHT
68°F
NW 6 mph
precip
3%
10.12
mon
DAY
70°F
W 4 mph
precip
10%
NIGHT
70°F
NW 4 mph
precip
10%

Incheon Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Incheon was 80.1°F. The maximum and minimum values were 76.0°F and 84.2°F respectively.

Incheon on the Weather Map

Best Time to Visit Incheon
The most sunny months:
May 19 days
October 18 days
March 18 days
The most warm months:
August 88.0 °F
July 85.3 °F
September 81.8 °F
Warmest sea temperature:
August 82.5 °F
September 78.3 °F
July 77.6 °F
The most cold months:
January 31.8 °F
February 36.2 °F
December 36.6 °F
The most rainy months:
July 10 days
August 8 days
June 4 days
The most windy months:
December 11 mph
November 10 mph
January 10 mph
South Korea Resorts:
NAME
F°
Busan +76
Incheon +70
Jeju +70
Muju +66
Seoul +70
Yongpyong +64
24 Hours Weather Forecast
Incheon
Local time: 07:41
29 sep, tuesday
0900 70°F
S
4 mph
1200 78°F
E
2 mph
1500 80°F
E
8 mph
1800 76°F
E
8 mph
2100 72°F
SE
4 mph
30 sep, wednesday
0000 70°F
E
2 mph
0300 70°F
N
3 mph
0600 68°F
N
3 mph