July weather forecast
South Carolina, USA

July stands as the pinnacle of summer in South Carolina, with some of the highest temperatures of the year. The coastal zones, including destinations like Myrtle Beach, register temperatures from 72°F (22.2°C) to 90°F (32.2°C). While days are scorching, the Atlantic breeze occasionally offers a slight reprieve along the shorelines.

The Midlands, where cities like Columbia are located, often grapple with intense heat. Here, daytime temperatures frequently approach their annual peaks, making outdoor activities during midday less appealing. The Upstate, though influenced by the Blue Ridge Mountains, is not exempt from the summer heat, but it does provide slightly cooler pockets, especially in areas with higher elevations.

July’s high temperatures are paired with significant humidity, leading to a sultry, and at times stifling, atmosphere. This combination often culminates in afternoon thunderstorms. While these showers can be heavy and accompanied by thunder and lightning, they tend to be brief, often clearing up by early evening.

In juxtaposition with June, July consistently maintains its heat, with only slight variations in temperatures. The two months are similar in their weather patterns, but July's intensity sets it apart. As the state marches towards August, South Carolina remains enveloped in the summer's grasp, with the promise of only a gradual cool-down as autumn nears.

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• Columbia - July »
  The months with the lowest humidity in Columbia are January, July and November, with an average relative humidity of 69%. In Columbia during July, the rain falls for 16.3 days and regularly aggregates up to 2.09" (53mm) of precipitation.
• Charleston - July »
  Charleston's warmest month, July, generally records average temperatures ranging from a high of 88.2°F (31.2°C) to a low of 77.4°F (25.2°C). Charleston's July weather reaches an average high of 88.2°F (31.2°C) and an average low of 77.4°F (25.2°C), making it the warmest month.
• North Charleston - July »
  As far as North Charleston's weather goes, July marks the peak of summer with the highest temperature averages for the year. North Charleston experiences its highest average temperatures in July, reaching a peak of 89.6°F (32°C) and a minimum of 76.5°F (24.7°C).
• Mount Pleasant - July »
  June and July, with an average of 10.9h of sunshine, are months with the most sunshine in Mount Pleasant, South Carolina. In Mount Pleasant in July, during 24.6 rainfall days, 5.51" (140mm) of precipitation is typically accumulated.
• Rock Hill - July »
  The month with the most sunshine in Rock Hill is July, with an average of 10.7h of sunshine. July stands out as Rock Hill's warmest month, with temperatures ranging between an average high of 91.2°F (32.9°C) and a low of 70.7°F (21.5°C).
• Greenville - July »
  The least humid month in Greenville, South Carolina, is July, with an average relative humidity of 69%. In Greenville during July, the rain falls for 18 days and regularly aggregates up to 2.6" (66mm) of precipitation.
• Summerville - July »
  In Summerville in July, during 16.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. With an average of 10.9h of sunshine, July has the most sunshine of the year in Summerville, South Carolina.
• Goose Creek - July »
  The month with the most sunshine in Goose Creek, South Carolina, is July, with an average of 10.9h of sunshine. On the first day of July in Goose Creek sunrise is at 6:15 am and sunset at 8:32 pm.
• Sumter - July »
  July is truly the height of summer in Sumter, characterized by long days, heat, and humidity. In Sumter in July, it is raining for 20.1 days, with typically 3.23" (82mm) of accumulated precipitation.
• Hilton Head Island - July »
  In Hilton Head Island during July, the rain falls for 23.4 days and regularly aggregates up to 4.17" (106mm) of precipitation. July, recognised by an average high temperature of 87.6°F (30.9°C) and a low of 77.9°F (25.5°C), is Hilton Head Island's warmest month.
• Florence - July »
  Observing July's weather in Florence, the month proves to be the peak of summer's heat, superseding the already intense temperatures of June. In Florence in July, during 20.5 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.
• Spartanburg - July »
  The least humid month in Spartanburg is July, with an average relative humidity of 68%. July is the hottest month of the year in Spartanburg, South Carolina.