Measurements:
°C
°F
CURRENT WEATHER
20:51
Incheon
74°F
SW 9 mph
Feels like: 74°F
Precip: 0%
World Resorts South Korea Incheon Weather

7 Day Weather Forecast

05.19
tue
DAY
72°F
SE 4 mph
precip
0%
NIGHT
72°F
SW 7 mph
precip
0%
05.20
wed
DAY
64°F
W 16 mph
precip
100%
NIGHT
60°F
W 14 mph
precip
100%
05.21
thu
DAY
62°F
SW 14 mph
precip
100%
NIGHT
62°F
SW 6 mph
precip
0%
05.22
fri
DAY
72°F
N 5 mph
precip
0%
NIGHT
64°F
E 3 mph
precip
0%
05.23
sat
DAY
68°F
SW 3 mph
precip
0%
NIGHT
64°F
SE 6 mph
precip
0%
05.24
sun
DAY
68°F
E 10 mph
precip
0%
NIGHT
64°F
E 4 mph
precip
0%
05.25
mon
DAY
72°F
E 6 mph
precip
0%
NIGHT
70°F
S 1 mph
precip
0%

Incheon Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Incheon was 15.0°F. The maximum and minimum values were 13.9°F and 16.9°F respectively.

Incheon on the Weather Map

Best Time to Visit Incheon
The most sunny months:
October 18 days
May 18 days
March 18 days
The most warm months:
August 88.2 °F
July 85.6 °F
September 81.7 °F
Warmest sea temperature:
August 82.3 °F
September 78.2 °F
July 77.4 °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 5 days
The most windy months:
December 11 mph
November 10 mph
January 10 mph
more details