Flash floods hit Charleston, South Carolina on September 7, 2025, after thunderstorms dropped heavy rainfall on already saturated ground. Up to 30 cm (12 inches) of standing water was reported in parts of downtown Charleston, with traffic and power disruptions affecting the city.
Significant flooding was reported in Downtown Charleston on July 22, 2025, along with salt water flooding that affected Charleston and Colleton County. A potentially fatal multi-vehicle collision was reported along the southbound I-95, prompting the closure of the route through July 22.
Charleston, South Carolina, set a new daily rainfall record on Sunday, May 11, 2025, after a moisture-laden storm system brought prolonged periods of heavy rain to the region. The event marked the highest recorded precipitation for that date at Charleston International Airport, with widespread impacts extending across the Southeast and mid-Atlantic. Flash flood threats are expected to persist through Wednesday, May 14, according to the Weather Prediction Center (WPC).
