World Resorts South Korea Incheon Weather

Incheon Sea Temperature in May

Average sea water temperature in May:
+57.9°F
Minimum sea water temperature in May: 65.8°F
Maximum sea water temperature in May: 48.2°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 58.9°F. The highest and lowest sea temperatures during the month were 64.8°F and 53.1°F.

Monthly sea water temperature in Incheon, °F

Which South Korea resorts have warmest sea in May?

Place name May 2025 May 2024
Jeju 60.9°F 63.4°F
Busan 59.4°F 62.4°F
Incheon 58.9°F 61.1°F
Seoul 58.7°F 61.1°F
Yongpyong 55.7°F 59.9°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
10:55
Incheon
+43°F
NW 6 mph
Feels like: +39°F
Precip.: 0%
Places in South Korea:
Name
°F
Yongpyong
+45°F
Incheon
+43°F
Muju
+50°F
Busan
+55°F
Seoul
+41°F
Jeju
+59°F
24 Hours Forecast
Incheon
Local time: 10:55
December 19, friday
1200
43°F
NW
6 mph
1500
46°F
NW
9 mph
1800
46°F
NW
7 mph
2100
46°F
NW
7 mph
December 20, saturday
0000
45°F
NW
7 mph
0300
46°F
NW
7 mph
0600
46°F
N
6 mph
0900
48°F
N
5 mph
Units of measurement: °C / °F