UV Index Today in Charleston County, South Carolina (SC)
Sunday, September 20, 2026 -12:23 PM EDT (GMT-4)
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The average maximum UV Index today across 20 locations in Charleston County, South Carolina (SC), is 6.9. The highest projected maximum is 7.5 in McClellanville at 2:00 PM EDT, while the lowest projected maximum is 5.8 in Charleston at 12:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 6.8. The highest projected maximum is 7.2 in Seabrook Island at 2:00 PM EDT, and the lowest projected maximum is 6.5 in Summerville at 1:00 PM EDT.
20 Places in Charleston County, South Carolina (SC)
Maximum UV Index Today