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

As of 9:46 AM EST on February 10, 2026, all 13 cities in St. Johns County, FL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is St. Augustine, FL with a reading of 1.3.

Over the next 24 hours, the highest UV Index reading in St. Johns County, FL is expected to be 5.3 in St. Augustine Shores between 12:00 PM - 1:00 PM EST 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 9:46 AM EST, February 10, 2026

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

9:46 AM EST, February 10, 2026