World Resorts South Korea Seoul Weather

Seoul Sea Temperature in October

Average sea water temperature in October:
+66.9°F
Minimum sea water temperature in October: 73.8°F
Maximum sea water temperature in October: 59.4°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 67.7°F. The highest and lowest sea temperatures during the month were 71.8°F and 62.1°F.

Monthly sea water temperature in Seoul, °F

Which South Korea resorts have warmest sea in October?

Place name October 2025 October 2024
Jeju 78.0°F 75.6°F
Busan 73.5°F 74.0°F
Incheon 68.4°F 69.6°F
Seoul 67.7°F 68.4°F
Yongpyong 67.6°F 69.5°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 85.9 °F
June 82.2 °F
Warmest sea temp:
August 78.7 °F
September 74.9 °F
July 74.7 °F
Coldest months:
January 32.8 °F
December 36.0 °F
February 38.2 °F
Rainiest months:
July 11 days
August 8 days
June 5 days
Windiest months:
April 7.2 mph
March 7.2 mph
May 6.5 mph

Seoul on a weather map

Current weather
07:48
Seoul
+19°F
SE 8 mph
Feels like: +10°F
Precip.: 0%
Places in South Korea:
Name
°F
Yongpyong
+14°F
Incheon
+23°F
Muju
+19°F
Busan
+30°F
Seoul
+19°F
Jeju
+37°F
24 Hours Forecast
Seoul
Local time: 07:48
January 08, thursday
0900
19°F
SE
8 mph
1200
25°F
SE
9 mph
1500
28°F
SE
9 mph
1800
27°F
SE
6 mph
2100
27°F
E
1 mph
January 09, friday
0000
25°F
NW
2 mph
0300
25°F
NW
3 mph
0600
25°F
NW
3 mph
Units of measurement: °C / °F