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 »
  In Columbia in July, during 16.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. The month of July sees the highest average temperatures in Columbia, reaching 91.6°F (33.1°C) at the peak and 73.8°F (23.2°C) at the low.
• Charleston - July »
  In Charleston in July, during 23.3 rainfall days, 4.72" (120mm) of precipitation is typically accumulated. The month with the most sunshine in Charleston, South Carolina, is July, with an average of 11h of sunshine.
• North Charleston - July »
  In North Charleston, South Carolina, July is identified by the highest average temperatures, reaching a peak of 89.6°F (32°C) and a low of 76.5°F (24.7°C). With an average of 10.9h of sunshine, July has the most sunshine of the year in North Charleston, South Carolina.
• Mount Pleasant - July »
  July proves to be the warmest month in Mount Pleasant, recording an average peak temperature of 87.6°F (30.9°C) and a minimum temperature of 77.9°F (25.5°C). The months with the most sunshine in Mount Pleasant are June and July, with an average of 10.9h of sunshine.
• Rock Hill - July »
  The least humid month in Rock Hill is July, with an average relative humidity of 69%. July is the least humid month in Rock Hill, South Carolina, with an average relative humidity of 69%.
• Greenville - July »
  The least humid month in Greenville is July, with an average relative humidity of 69%. The least humid month in Greenville is July, with an average relative humidity of 69%.
• Summerville - July »
  The highest temperatures in Summerville are recorded in July, with averages reaching a high of 91.2°F (32.9°C) and a low of 74.7°F (23.7°C). In Summerville in July, it is raining for 16.5 days, with typically 1.14" (29mm) of accumulated precipitation.
• Goose Creek - July »
  July, with its average high-temperature of 90.5°F (32.5°C) and an average low-temperature of 75.7°F (24.3°C), holds the record as the warmest month in Goose Creek, South Carolina. The month with the most sunshine in Goose Creek, South Carolina, is July, with an average of 10.9h of sunshine.
• Sumter - July »
  July is truly the height of summer in Sumter, characterized by long days, heat, and humidity. In Sumter, during July, the rain falls for 20.1 days and regularly aggregates up to 3.23" (82mm) of precipitation.
• Hilton Head Island - July »
  In Hilton Head Island in July, the average water temperature is 83.1°F (28.4°C). In Hilton Head Island the average seawater temperature in July is 83.1°F (28.4°C).
• 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. Temperature readings in Florence reach their annual highs in July, averaging 89.6°F (32°C) and a minimum average of 72.3°F (22.4°C).
• Spartanburg - July »
  The least humid month in Spartanburg is July, with an average relative humidity of 68%. July is the least humid month in Spartanburg, with an average relative humidity of 68%.