Web4 days ago · water temperature of the atlantic ocean in myrtle beach, sc. Monday, october 7, 2024, 4:06 am edt. Websep 30, 2024 · sponsored content. Weather for myrtle beach, south carolina. 75 ° f to 81 ° f. Sunny with warm air temperatures at myrtle beach. Web4 days ago · current ocean temperature in north myrtle beach. Water temperature in north myrtle beach today is 78. 3°f. Based on our historical data over a period of ten.