World Resorts South Korea Incheon Weather

Incheon Sea Temperature in April

Average sea water temperature in April:
+48.9°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 51.0°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 58.3°F 54.5°F
Yongpyong 53.5°F 49.8°F
Seoul 51.5°F 49.8°F
Incheon 51.0°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
02:20
Incheon
+52°F
E 14 mph
Feels like: +46°F
Precip.: 67%
Places in South Korea:
Name
°F
Yongpyong
+48°F
Incheon
+52°F
Muju
+52°F
Busan
+59°F
Seoul
+55°F
Jeju
+59°F
24 Hours Forecast
Incheon
Local time: 02:20
April 28, tuesday
0300
52°F
E
14 mph
0600
50°F
E
16 mph
0900
52°F
SE
14 mph
1200
54°F
E
16 mph
1500
55°F
E
19 mph
1800
55°F
E
17 mph
2100
55°F
SE
9 mph
April 29, wednesday
0000
52°F
S
7 mph
Units of measurement: °C / °F