World Resorts South Korea Incheon Weather

Incheon Sea Temperature in May

Average sea water temperature in May:
+58.1°F
Minimum sea water temperature in May: 66.6°F
Maximum sea water temperature in May: 48.2°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 60.8°F. The highest and lowest sea temperatures during the month were 66.6°F and 57.0°F.

Monthly sea water temperature in Incheon, °F

Which South Korea resorts have warmest sea in May?

Place name May 2026 May 2025
Jeju 64.6°F 60.9°F
Busan 62.1°F 59.4°F
Incheon 60.8°F 58.9°F
Seoul 60.7°F 58.7°F
Yongpyong 58.8°F 55.7°F

Best time for vacation in Incheon

Sunniest months:
May 19 days
October 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 4 days
Windiest months:
December 11.1 mph
November 10.3 mph
January 10.3 mph

Incheon on a weather map

Current weather
13:13
Incheon
+79°F
SE 6 mph
Feels like: +81°F
Precip.: 2%
Places in South Korea:
Name
°F
Yongpyong
+73°F
Incheon
+79°F
Muju
+82°F
Busan
+73°F
Seoul
+88°F
Jeju
+72°F
24 Hours Forecast
Incheon
Local time: 13:13
June 27, saturday
1500
79°F
E
11 mph
1800
77°F
E
11 mph
2100
73°F
E
7 mph
June 28, sunday
0000
73°F
E
4 mph
0300
72°F
NE
3 mph
0600
72°F
N
5 mph
0900
73°F
N
6 mph
1200
77°F
NE
8 mph
Units of measurement: °C / °F