Nassau County, NY: Current UV Index and Hourly Forecast

As of 1:26 PM EDT on July 13, 2025, all 131 cities in Nassau County, NY in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Levittown, NY with a reading of 9.8.

Over the next 24 hours, the highest UV Index reading in Nassau County, NY is expected to be 9.8 in Levittown between 1:00 PM - 2:00 PM EDT today.

Search Cities in Nassau County, NY

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Nassau County, NY as of 1:26 PM EDT, July 13, 2025

Current UV Index in Cities in Nassau County, NY

1:26 PM EDT, July 13, 2025