St. Johns County, FL: Current UV Index and Hourly Forecast

As of 6:03 AM EDT on July 10, 2026, all 13 cities in St. Johns County, FL in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in St. Johns County, FL is expected to be 10.4 in Palm Valley between 1:00 PM - 2:00 PM EDT today.

Search Cities in St. Johns County, FL

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in St. Johns County, FL as of 6:03 AM EDT, July 10, 2026

Current UV Index in Cities in St. Johns County, FL

6:03 AM EDT, July 10, 2026