Average daytime highs in January and February, the coolest months of the year in Myrtle Beach, are 55-60 degrees, and temperatures dip down to the 40s at night on average.
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With the average temperature of 60 degrees you can wear shorts if you choose to. If you'd like to head to the beach for a day and enjoy the sand and a nice walk down the beach, then you can.
The warmest water temperature is in August with an average around 82.8°F / 28.2°C. The coldest month is March with an average water temperature of 57.7°F / 14.3°C.
*Horry County lifeguards protect the north section of Myrtle Beach State Park from mid May through mid September. *Know how to swim. *Never swim alone. *Never swim at night.
Sharks are most active around Myrtle Beach between May and October. In 2019, the odds of receiving a shark bite on Myrtle Beach were roughly 1 in 4 million.
Water quality for beaches throughout the entire Myrtle Beach area is very good. Water quality testing occurs twice a week during the summer and results are posted on SCDHEC's Beach Access Guide. Rainstorms create runoff and can temporarily increase the bacteria count in the water.
Myrtle Beach weather becomes mild during the winter months. It's best to pack a light coat, weather-appropriate clothing, and closed-toed shoes during this time of year. It's best to stay informed of Myrtle Beach weather patterns for your travel dates, just so you know what to expect.