UV Index Today in Nassau County, New York (NY)

Wednesday, November 4, 2026 -12:18 PM EST (GMT-5)

The average maximum UV Index today across 138 locations in Nassau County, New York (NY), is 3.1. The highest projected maximum is 3.1 in New York at 12:00 PM EST, while the lowest projected maximum is 3.1 in New York at 12:00 PM EST.

Tomorrow, the average maximum UV Index across those same locations is expected to be 1. The highest projected maximum is 2.5 in Lido Beach at 11:00 AM EST, and the lowest projected maximum is 0.6 in North Hempstead at 11:00 AM EST.

135 Places in Nassau County, New York (NY)

Maximum UV Index Today
  • New York - 3.1