World Resorts South Korea Incheon Weather

Incheon Sea Temperature in April

Average sea water temperature in April:
+49.0°F
Minimum sea water temperature in April: 57.4°F
Maximum sea water temperature in April: 41.5°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 51.5°F. The highest and lowest sea temperatures during the month were 55.8°F and 46.9°F.

Monthly sea water temperature in Incheon, °F

Which South Korea resorts have warmest sea in April?

Place name April 2026 April 2025
Jeju 60.5°F 57.9°F
Busan 58.6°F 54.5°F
Yongpyong 53.6°F 49.8°F
Seoul 52.0°F 49.8°F
Incheon 51.5°F 49.5°F

Best time for vacation in Incheon

Sunniest months:
October 18 days
May 18 days
March 18 days
Warmest months:
August 84.4 °F
July 82.0 °F
September 78.6 °F
Warmest sea temp:
August 79.1 °F
September 75.4 °F
July 74.7 °F
Coldest months:
January 33.6 °F
February 37.6 °F
December 38.0 °F
Rainiest months:
July 10 days
August 8 days
June 5 days
Windiest months:
December 11.1 mph
November 10.3 mph
January 10.3 mph

Incheon on a weather map

Current weather
04:00
Incheon
+64°F
NW 1 mph
Feels like: +64°F
Precip.: 0%
Places in South Korea:
Name
°F
Yongpyong
+61°F
Incheon
+64°F
Muju
+55°F
Busan
+63°F
Seoul
+64°F
Jeju
+63°F
24 Hours Forecast
Incheon
Local time: 04:00
May 18, monday
0600
63°F
NW
3 mph
0900
66°F
N
3 mph
1200
70°F
NE
6 mph
1500
70°F
E
8 mph
1800
68°F
E
7 mph
2100
68°F
SE
4 mph
May 19, tuesday
0000
66°F
NE
2 mph
0300
66°F
NE
3 mph
Units of measurement: °C / °F