Average Myrtle Beach, SC Air and Water Temperatures.
| Month | Air | Water | Precipitation |
| January | 57° | 51° | 4.70" |
| February | 60° | 52° | 3.53" |
| March | 66° | 57° | 4.22" |
| April | 75° | 62° | 3.10" |
| May | 82° | 69° | 4.01" |
| June | 87° | 77° | 4.96" |
| July | 90° | 81° | 5.89" |
| August | 89° | 83° | 6.43" |
| September | 84° | 80° | 6.44" |
| October | 76° | 73° | 3.95" |
| November | 68° | 65° | 3.25" |
| December | 59° | 55° | 4.20" |