North Myrtle Beach Weather


Ocean Water
To ensure the quality of the Grand Strand's ocean water, the communities along these golden shores have enacted a voluntary summer-long water-testing program. Using 20 sites along the coastline, the program meets EPA standards, established in cooperation with the South Carolina Department of Health and Environmental Control.

Did You Know?
Ocean water temperature along the Grand Strand beaches is about 20 degrees warmer than New York ocean water during the summer months and approximately 10 degrees warmer during the winter months.

Annual Averages
(Based on 30 years of data)
Sunny days: 215
Days when maximum temperature is more than 90(Fahrenheit): 46
Days with .10 inches of rain or more: 72
Average air temperature in Fahrenheit: 64
Average water temperature in Fahrenheit: 66
Average relative humidity at 1 p.m.: 57%

Myrtle Beach Area Climate Air & Water
Average Temperature Highs
(In degrees Fahrenheit, based on 30 years of data)

 
Month Air (°F) Water (°F)
January 56 51
February 60 52
March 68 57
April 76 62
May 83 69
June 88 77
July 91 81
August 89 83
September 85 80
October 77 73
November 69 65
December 60 55
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