South Korea
South Korea offers a diverse range of sea water temperatures. At the moment, you can observe the warmest water temperatures along the shores of the cities Jeju City (59.0°F), Ulsan (57.9°F) and Pohang (55.2°F). In contrast, the city of Ansan-si has the coldest water temperature in South Korea, averaging around 37.5°F. This means the difference in water temperature between the warmest and coldest coastal cities is 21.4°F.
Destinations in South Korea