Why is cape towns sea colder than durdans sea?

Cape Town does not have a colder ocean than Durban. Cape Town's ocean is known to be quite cold even in the summers, with water temperatures ranging between 11-14 degrees Celsius (52-57 degrees Fahrenheit). On the other hand, Durban's ocean tends to be warmer due to its subtropical location, with water temperatures typically ranging between 22-28 degrees Celsius (72-82 degrees Fahrenheit).