World Resorts South Korea Incheon Weather

Incheon Sea Temperature in April

Average sea water temperature in April:
+48.8°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:
2025
2024
2023

The average sea water temperature in April of 2025 was 49.5°F. The highest and lowest sea temperatures during the month were 54.5°F and 45.0°F.

Monthly sea water temperature in Incheon, °F

Which South Korea resorts have warmest sea in April?

Place name April 2025 April 2024
Jeju 57.9°F 60.8°F
Busan 54.5°F 58.3°F
Yongpyong 49.8°F 54.3°F
Seoul 49.8°F 51.6°F
Incheon 49.5°F 51.9°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 33.9 °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
February 10.3 mph

Incheon on a weather map

Current weather
05:12
Incheon
+41°F
S 9 mph
Feels like: +34°F
Precip.: 0%
Places in South Korea:
Name
°F
Yongpyong
+32°F
Incheon
+41°F
Muju
+39°F
Busan
+50°F
Seoul
+37°F
Jeju
+54°F
24 Hours Forecast
Incheon
Local time: 05:12
December 17, wednesday
0600
41°F
S
9 mph
0900
39°F
S
9 mph
1200
41°F
SE
11 mph
1500
43°F
SE
14 mph
1800
41°F
SE
13 mph
2100
39°F
SE
11 mph
December 18, thursday
0000
37°F
SE
7 mph
0300
37°F
S
4 mph
Units of measurement: °C / °F