World Resorts South Korea Seoul Weather

Seoul sea water temperature

Current sea water temperature:
+80.8°F
Minimum sea water temperature in August: 85.1°F
Maximum sea water temperature in August: 72.9°F
Average sea water temperature in August: 78.8°F

Sea water temperature for the last 10 days:

August 26 80.8°F August 21 80.2°F
August 25 80.1°F August 20 79.9°F
August 24 79.9°F August 19 80.2°F
August 23 79.3°F August 18 79.3°F
August 22 80.2°F August 17 80.4°F

When is the warmest sea in Seoul?

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

Monthly Sea Temperatures in Seoul, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 81.4°F. The highest and lowest sea temperatures during the month were 85.1°F and 79.3°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 76.6°F. The highest and lowest sea temperatures during the month were 81.0°F and 72.1°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 76.8°F. The highest and lowest sea temperatures during the month were 79.9°F and 74.1°F.

Best time for vacation in Seoul

Sunniest months:
May 19 days
October 18 days
March 17 days
Warmest months:
August 87.0 °F
July 85.8 °F
June 82.2 °F
Warmest sea temp:
August 78.9 °F
September 74.9 °F
July 74.8 °F
Coldest months:
January 32.6 °F
December 36.0 °F
February 38.3 °F
Rainiest months:
July 11 days
August 8 days
September 5 days
Windiest months:
April 7.1 mph
March 7.1 mph
May 6.5 mph

Seoul on a weather map

Seoul
+77°F
W 1 mph
Feels like: +81°F
Precip.: 23%
Places in South Korea:
Name
°F
+70°F
+77°F
+75°F
+81°F
+77°F
+79°F
24 Hours Forecast
Seoul
Local time: 04:10
August 27, thursday
0600
77°F
S
2 mph
0900
77°F
S
2 mph
1200
84°F
N
1 mph
1500
88°F
E
2 mph
1800
86°F
SE
4 mph
2100
81°F
SE
2 mph
August 28, friday
0000
79°F
S
1 mph
0300
77°F
W
2 mph
Units of measurement: °C / °F