UV Index Today in Nassau County, New York (NY) Wednesday, July 15, 2026 -1:06 PM EDT (GMT-4) The average maximum UV Index today across 138 locations in Nassau County, New York (NY) , is 7.9. The highest projected maximum is 8.5 in Long Beach at 1:00 PM EDT, while the lowest projected maximum is 7.1 in Bayville at 1:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 7.1. The highest projected maximum is 7.7 in Bayville at 1:00 PM EDT, and the lowest projected maximum is 6 in Lido Beach at 1:00 PM EDT.
3 County Subdivisions in Nassau County, New York (NY) Maximum UV Index Today
135 Places in Nassau County, New York (NY) Maximum UV Index Today
Albertson - 8
Amityville - 7.6
Atlantic Beach - 8.5
Baldwin - 7.6
Barnum Island - 8.5
Baxter Estates - 8
Bay Park - 8
Bayville - 7.1
Bellerose - 8
Bellerose Terrace - 8
Bellmore - 7.6
Bethpage - 7.6
Brookville - 7.6
Carle Place - 7.6
Cedarhurst - 8
Cold Spring Harbor - 7.6
East Atlantic Beach - 8.5
East Farmingdale - 7.6
East Hills - 8
East Massapequa - 7.6
East Meadow - 7.6
East Norwich - 7.6
East Rockaway - 8
East Williston - 8
Elmont - 8
Farmingdale - 7.6
Floral Park - 8
Flower Hill - 8
Franklin Square - 8
Freeport - 7.6
Garden City - 8
Garden City Park - 8
Garden City South - 8
Glen Cove - 8
Glen Head - 7.6
Glenwood Landing - 8
Great Neck - 8
Great Neck Estates - 8
Great Neck Gardens - 8
Great Neck Plaza - 8
Greenvale - 8
Harbor Isle - 8.5
Hempstead - 7.6
Herricks - 8
Hewlett - 8
Hewlett Harbor - 8
Hewlett Neck - 8.5
Hicksville - 7.6
Inwood - 8.5
Island Park - 8.5
Jericho - 7.6
Kensington - 8
Kings Point - 8
Lake Success - 8
Lakeview - 8
Lattingtown - 7.1
Laurel Hollow - 7.6
Lawrence - 8.5
Levittown - 7.6
Lido Beach - 8.3
Locust Valley - 7.1
Long Beach - 8.5
Lynbrook - 8
Malverne - 8
Malverne Park Oaks - 8
Manhasset - 8
Manhasset Hills - 8
Manorhaven - 8
Massapequa - 7.6
Massapequa Park - 7.6
Matinecock - 7.6
Melville - 7.6
Merrick - 7.6
Mill Neck - 7.1
Mineola - 8
Munsey Park - 8
Muttontown - 7.6
New Cassel - 7.6
New Hyde Park - 8
New York - 8.3
North Amityville - 7.6
North Bellmore - 7.6
North Hills - 8
North Lynbrook - 8
North Massapequa - 7.6
North Merrick - 7.6
North New Hyde Park - 8
North Valley Stream - 8
North Wantagh - 7.6
Oceanside - 8
Old Bethpage - 7.6
Old Brookville - 7.6
Old Westbury - 7.6
Oyster Bay - 7.6
Oyster Bay Cove - 7.6
Plainedge - 7.6
Plainview - 7.6
Plandome - 8
Plandome Heights - 8
Plandome Manor - 8
Point Lookout - 8.3
Port Washington - 8
Port Washington North - 8
Rockville Centre - 8
Roosevelt - 7.6
Roslyn - 8
Roslyn Estates - 8
Roslyn Harbor - 8
Roslyn Heights - 8
Russell Gardens - 8
Saddle Rock - 8
Salisbury - 7.6
Sands Point - 8
Sea Cliff - 8
Seaford - 7.6
Searingtown - 8
South Farmingdale - 7.6
South Floral Park - 8
South Hempstead - 7.6
South Valley Stream - 8
Stewart Manor - 8
Syosset - 7.6
Thomaston - 8
Uniondale - 7.6
University Gardens - 8
Upper Brookville - 7.6
Valley Stream - 8
Wantagh - 7.6
Westbury - 7.6
West Hempstead - 8
West Hills - 7.6
Williston Park - 8
Woodbury - 7.6
Woodmere - 8
Woodsburgh - 8.5