August weather forecast
South Carolina, USA

August in South Carolina continues the summer saga, characterized by warm temperatures, though there's a subtle hint of the forthcoming change as the month progresses. Coastal areas, encompassing cities like Beaufort, see temperatures ranging from 70°F (21.1°C) to 88°F (31.1°C). Daytime remains hot, but as the month nears its conclusion, nights begin to offer a slightly cooler respite.

The Midlands, with cities like Columbia at its heart, still grapple with the vestiges of peak summer heat. Afternoons can be particularly warm, urging locals and visitors to seek shade or indoor comforts. The Upstate, closer to the Blue Ridge Mountains, experiences a gradual decline in temperatures as the month wears on, especially during the evenings, making it a tad more bearable than the state's central regions.

Humidity remains a staple of August weather, often leading to muggy conditions. This humidity, combined with the heat, frequently results in afternoon thunderstorms. These rain events, although robust, are generally fleeting, giving way to clearer skies as the evening approaches.

Comparatively, while June and July are undeniably hotter, August marks the transition phase. The month starts with the full force of summer but slowly hints at the cooler, more temperate conditions of September. As August winds down, there's an anticipatory air in South Carolina, looking forward to the resplendent colors and milder temperatures of the impending autumn.

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• Columbia - August »
  On the last day of August, sunrise is at 6:57 am and sunset at 7:51 pm EDT. In Columbia, during August, the rain falls for 15.3 days and regularly aggregates up to 2.48" (63mm) of precipitation.
• Charleston - August »
  The month with the most rainfall in Charleston is August, when the rain falls for 24.8 days and typically aggregates up to 7.13" (181mm) of precipitation. The month with the most rainfall in Charleston is August, when the rain falls for 24.8 days and typically aggregates up to 7.13" (181mm) of precipitation.
• North Charleston - August »
  The month with the most rainfall in North Charleston is August, when the rain falls for 22.7 days and typically aggregates up to 4.29" (109mm) of precipitation. The month with the most rainfall in North Charleston is August, when the rain falls for 22.7 days and typically aggregates up to 4.29" (109mm) of precipitation.
• Mount Pleasant - August »
  In Mount Pleasant, during August, the rain falls for 25.8 days and regularly aggregates up to 8.03" (204mm) of precipitation. The average relative humidity in August in Mount Pleasant, South Carolina, is 76%.
• Rock Hill - August »
  During the month of August, an average low-temperature of 69.4°F (20.8°C) is recorded in Rock Hill, South Carolina. In August, the average high-temperature and low-temperature in Rock Hill are 88.9°F (31.6°C) and 69.4°F (20.8°C) respectively.
• Greenville - August »
  May through August, with an average maximum UV index of 6, are months with the highest UV index in Greenville, South Carolina. In Greenville, in August, it is raining for 17.3 days, with typically 3.27" (83mm) of accumulated precipitation.
• Summerville - August »
  On the first day of August in Summerville, South Carolina, sunrise is at 6:34 am and sunset at 8:20 pm. On the last day of August, in Summerville, sunrise is at 6:54 am and sunset at 7:47 pm EDT.
• Goose Creek - August »
  In Goose Creek, during August, the rain falls for 23.4 days and regularly aggregates up to 6.22" (158mm) of precipitation. The average relative humidity in August in Goose Creek is 76%.
• Sumter - August »
  On the first day of August in Sumter, sunrise is at 6:33 am and sunset at 8:22 pm. In Sumter, during August, the rain falls for 18.7 days and regularly aggregates up to 3.5" (89mm) of precipitation.
• Hilton Head Island - August »
  The month with the most rainfall in Hilton Head Island, South Carolina, is August, when the rain falls for 25 days and typically aggregates up to 6.06" (154mm) of precipitation. Hilton Head Island's weather in August is marked by a confluence of intense heat and substantial rainfall, making it the wettest month of the year.
• Florence - August »
  Florence transitions into August recording an average high-temperature of a still hot 88.3°F (31.3°C), closely aligning with the preceding month's temperature. Focusing on Florence's weather in August, the heat wave that initiated in July continues with barely any respite.
• Spartanburg - August »
  In Spartanburg in August, during 15.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In August, the average relative humidity in Spartanburg, South Carolina, is 70%.