At this moment warmest sea in South Korea was observed in the following locations: Jeju, Busan, Incheon.
You can find the full list of South Korea marine locations in the table below. It shows current sea temperature values and averages for current and upcoming months.
| Place name | Current sea temp |
October 2025 | November 2025 |
|---|---|---|---|
| Jeju | 76.1°F | 78.0°F | 70.5°F |
| Busan | 75.0°F | 73.5°F | 66.4°F |
| Incheon | 71.8°F | 68.4°F | 57.5°F |
| Seoul | 70.7°F | 67.7°F | 57.1°F |
| Yongpyong | 70.5°F | 67.6°F | 62.3°F |
Charts below show average sea water temperature for South Korea resorts with the warmest sea.
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
