World Resorts South Korea Incheon Weather

Incheon sea water temperature

Current sea water temperature:
+66.4°F
Minimum sea water temperature in October: 76.6°F
Maximum sea water temperature in October: 59.2°F
Average sea water temperature in October: 67.4°F

Sea water temperature for the last 10 days:

October 26 66.4°F October 21 68.2°F
October 25 66.6°F October 20 68.2°F
October 24 67.1°F October 19 68.5°F
October 23 67.5°F October 18 69.4°F
October 22 67.6°F October 17 69.4°F

When is the warmest sea in Incheon?

Based on the data about daily sea water temperature for the last three years the warmest sea in Incheon was noticed in August, September and July.

Monthly Sea Temperatures in Incheon, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 82.1°F. The highest and lowest sea temperatures during the month were 85.6°F and 80.2°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 76.9°F. The highest and lowest sea temperatures during the month were 80.8°F and 73.4°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 77.4°F. The highest and lowest sea temperatures during the month were 80.8°F and 73.2°F.

Best time for vacation in Incheon

Sunniest months:
May 19 days
October 18 days
March 18 days
Warmest months:
August 84.2 °F
July 81.8 °F
September 78.6 °F
Warmest sea temp:
August 79.2 °F
September 75.5 °F
July 74.8 °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

Incheon
+55°F
SE 13 mph
Feels like: +52°F
Precip.: 3%
Places in South Korea:
Name
°F
+52°F
+55°F
+54°F
+61°F
+54°F
+64°F
24 Hours Forecast
Incheon
Local time: 02:01
October 27, tuesday
0300
55°F
SE
13 mph
0600
52°F
SE
12 mph
0900
54°F
SE
11 mph
1200
59°F
SE
17 mph
1500
55°F
SE
19 mph
1800
50°F
SE
16 mph
2100
46°F
SE
13 mph
October 28, wednesday
0000
43°F
SE
12 mph
Units of measurement: °C / °F