UV Index Today in Charleston County, South Carolina (SC)

Friday, May 22, 2026 -1:09 PMEDT (GMT-4)

The average maximum UV Index today across 20 locations in Charleston County, South Carolina (SC), is 10.1. The highest projected maximum is 10.3 in Kiawah Island at 1:00 PM EDT, while the lowest projected maximum is 9.9 in North Charleston at 1:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 8.8. The highest projected maximum is 9.5 in Seabrook Island at 1:00 PM EDT, and the lowest projected maximum is 8.2 in Summerville at 1:00 PM EDT.

20 Places in Charleston County, South Carolina (SC)

Maximum UV Index Today