Sumter County, SC: Current UV Index and Hourly Forecast

As of 5:34 PM EDT on August 29, 2025, all 17 cities in Sumter County, SC in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Sumter, SC with a reading of 2.7.

Over the next 24 hours, the highest UV Index reading in Sumter County, SC is expected to be 6.6 in Sumter between 3:00 PM - 4:00 PM EDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Sumter County, SC as of 5:34 PM EDT, August 29, 2025

Current UV Index in Cities in Sumter County, SC

5:34 PM EDT, August 29, 2025