Weather Forecast and Radar for Sumter, South Carolina

Weather in Sumter, SC

Sumter, South Carolina has hot and humid summers and mild winters. The average temperature year-round is around 70°F (21°C). During the summer, temperatures typically range from the mid-80s to the mid-90s (29°C to 35°C). The hottest months are usually July and August, with temperatures often reaching the upper 90s (37°C). Nights are usually warm and muggy, with temperatures often staying in the mid-70s (24°C). During the winter, temperatures typically range from the mid-40s to the mid-60s (7°C to 18°C). The coldest months are usually January and February, with temperatures often dropping into the low 30s (0°C). Rainfall is fairly consistent throughout the year, with an average of around 47 inches (120 cm) per year.

Fast Facts About Sumter, SC

As of 2020, the city population is 77626.

Major Cities Nearby Sumter, SC

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Sumter, South Carolina.