Myrtle Beach Weather in July

July has the hottest and wettest weather for Myrtle Beach, South Carolina. In most years though, the temperature never rises above 100 °F (38 °C). And most days this month have no rain.

This page gives detailed information on the typical July weather for Myrtle Beach.

You can jump directly to data and descriptions for:

The temperature and rainfall numbers here are historical averages based on climate data gathered at Myrtle Beach. The sunshine and humidity measurements are averages from the Charleston International Airport located south along the coast in North Charleston, SC. This weather station has a climate similar to Myrtle Beach and is the closest one that collects sun and humidity information for the National Climatic Data Center.

Temperature Weather iconTemperature

88 °F July average high 31 °C
71 °F July average low 22 °C

In most years, Myrtle Beach averages a daily maximum temperature for July that's between 86 and 90 degrees Fahrenheit (30 to 32 degrees Celsius). The minimum temperature usually falls between 70 and 73 °F (21 to 23 °C).

July is the hottest month overall for this vacation destination, with temperatures peaking from the 15th to 19th. These dates have daily highs averaging 88.1 °F (31.2 °C) and lows of 71.6 °F (22.0 °C).

8 days 90 °F max. or more (32 °C)
10 days 70 °F min. or less (21 °C)

Nearly every day in July warms to over 80 °F (27 °C) in Myrtle Beach. Temperatures of 100 °F (38 °C) or above occur here only about once a decade.

In most years, July does not get as cold as 60 °F (16 °C).

Rainy Weather iconRain

6.5 in total precipitation 165 mm
10 days of rain

July is the rainiest month of the year for Myrtle Beach.

Sunny Weather iconSun

67 % sunshine
5 days clear skies

The sun's rays reach the ground in Myrtle Beach during 67 percent of daylight hours on average in July, for a total of 293 hours in the month. Typically on 5 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in July at the seaside city lasts for 14 hours and 7 minutes a day on average. The longest day of the month is the 1st with 14 hours and 21 minutes of daylight. By the end of the month, the days have shortened to 13:49 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

77 % July average humidity

The relative humidity in Myrtle Beach during July usually peaks at 89 percent in the morning then drops to 60 percent by early afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 88 89 86 68 60 63 74 84

Stormy Weather iconStorms

6 % chance a named storm approaches

There's a 6 percent probability that a named tropical storm will approach within 100 miles (165 km) of Myrtle Beach during July, and a 2 percent chance of a category 1 or 2 hurricane. Major hurricanes are unlikely this time of year.


These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity statistics are 1961-1990 normals. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.

Myrtle Beach Weather
Back to Top