In September warmest sea in South Korea is usually observed in the following locations: Jeju, Busan, Incheon.
Table below shows the average sea water temperature for marine resorts of South Korea in September for the last three years.
| Place name | September 2023 | September 2022 | September 2021 |
|---|---|---|---|
| Jeju | 80.3°F | 77.9°F | 77.4°F |
| Busan | 78.2°F | 76.2°F | 76.4°F |
| Incheon | 76.7°F | 74.4°F | 75.2°F |
| Seoul | 75.5°F | 74.0°F | 74.6°F |
| Yongpyong | 74.4°F | 72.3°F | 73.1°F |
Charts below show average sea water temperature for South Korea resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of South Korea resorts at that time.
Places in South Korea:
Name
°F
