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Beach view with umbrella and pier

Comfortable Climate Year Round

Mild temperatures and gentle ocean breezes make the Grand Strand an ideal vacation destination any time of the year.

Average Temperature Highs and Average Monthly Precipitation

(Water and air temperatures based on 30 years of data in degrees Fahrenheit.)

Month Air Water Precipitation
January 57° 51° 4.02"
February 61° 52° 3.45"
March 68° 57° 4.27"
April 75° 62° 3.31"
May 82° 69° 3.20"
June 88° 77° 4.79"
July 91° 81° 5.93"
August 89° 83° 6.42"
September 84° 80° 6.84"
October 77° 73° 4.63"
November 69° 65° 3.26"
December 60° 55° 4.06"
MBACC Statistical Abstract 24th Edition

Ocean Water

The health and safety of residents and visitors is of the highest importance to each of the local governments in the Myrtle Beach area. To ensure that our beach water is clean and safe, a water-monitoring program is in place. The program meets Environmental Protection Agency standards, established in cooperation with the South Carolina Department of Health and Environmental Control. The surf is tested regularly at 20 sites along the coastline. If contaminants are detected, a swimming advisory is posted in the affected area. The possibility of pollutants in ocean water is greatest after a heavy rain, when runoff from lawns and streets may flush out trash, fertilizer, or pesticides. Swimming immediately after a rainstorm or in water discharging from storm drainage pipes should be avoided. Swimming in contaminated water may result in minor illnesses such as sore throats or diarrhea.

Annual Weather Statistical Averages

Sunny days 215
Overcast days 150
Frost days 42
Days when maximum temperature is more than 90 degrees 40
Days with .10 inches of rain or more 77
Number of sunny days during an average summer month 18
Number of sunny days during an average winter month 15
Wettest months Aug. & Sep.
Driest months May & Nov.
Hottest day (105 degrees F) Aug. 22, 1983
Coldest day (4 degrees F) Jan. 21, 1985
MBACC Statistical Abstract 24th Edition


Ocean Water Trivia

During the summer months, the ocean water along the Grand Strand is about 20°F warmer than the ocean water along New York beaches. Over the last 30 years, the lowest temperature Grand Strand ocean water has reached is 47°F (in January 2011) and the highest is 88°F (in July 2011).

Temperatures along the southern coast are usually cooler than inland areas during the summer because of the sea breeze.
Source: S.C. State Climate Office