Avg. Temps & Precipitation | Ocean Water Safety Did You Know? | Statistical Averages

Winter	Air	Water	Precipitation
December	59	55	3.17"
January	57	51	3.80"
February	60	52	3.62"

Spring	Air	Water	Precipitation
March	66	57	4.27"
April	75	62	2.82"
May	82	69	4.03"

Summer	Air	Water	Precipitation
June	87	77	5.11"
July	90	81	6.09"
August	89	83	6.19"

Fall	Air	Water	Precipitation
September	84	80	5.57"
October	76	73	2.73"
November	68	65	2.80"

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.

Did You Know?

During the summer months, the ocean water along the Grand Strand is about 20 degrees 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 degrees F (in January) and the highest is 88 degrees F (in July). Temperatures along the southern coast are usually cooler than inland areas during the summer because of the sea breeze.

Annual Weather Statistical Averages

(Water and air temperatures based on 30 years of data from the S.C. State Climatology Office; in degrees Fahrenheit)