UV Index Today in St. Johns County, Florida (FL)
Friday, August 7, 2026 -3:04 PM EDT (GMT-4)
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The average maximum UV Index today across 18 locations in St. Johns County, Florida (FL), is 10.1. The highest projected maximum is 10.8 in Jacksonville at 1:00 PM EDT, while the lowest projected maximum is 9.2 in St. Augustine at 12:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 10.8. The highest projected maximum is 11.1 in Flagler Estates at 1:00 PM EDT, and the lowest projected maximum is 10.1 in Palm Coast at 1:00 PM EDT.
18 Places in St. Johns County, Florida (FL)
Maximum UV Index Today