UV Index Today in Nassau County, New York (NY) Saturday, August 15, 2026 -2:13 AM EDT (GMT-4) The average maximum UV Index today across 138 locations in Nassau County, New York (NY) , is 8. The highest projected maximum is 8.1 in New York at 1:00 PM EDT, while the lowest projected maximum is 8 in Hempstead at 1:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 7.4. The highest projected maximum is 8.2 in Bayville at 1:00 PM EDT, and the lowest projected maximum is 6 in Long Beach at 11:00 AM 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 - 8
Atlantic Beach - 8.1
Baldwin - 8
Barnum Island - 8.1
Baxter Estates - 8
Bay Park - 8
Bayville - 8
Bellerose - 8
Bellerose Terrace - 8
Bellmore - 8
Bethpage - 8
Brookville - 8
Carle Place - 8
Cedarhurst - 8
Cold Spring Harbor - 8
East Atlantic Beach - 8.1
East Farmingdale - 8
East Hills - 8
East Massapequa - 8
East Meadow - 8
East Norwich - 8
East Rockaway - 8
East Williston - 8
Elmont - 8
Farmingdale - 8
Floral Park - 8
Flower Hill - 8
Franklin Square - 8
Freeport - 8
Garden City - 8
Garden City Park - 8
Garden City South - 8
Glen Cove - 8
Glen Head - 8
Glenwood Landing - 8
Great Neck - 8
Great Neck Estates - 8
Great Neck Gardens - 8
Great Neck Plaza - 8
Greenvale - 8
Harbor Isle - 8.1
Hempstead - 8
Herricks - 8
Hewlett - 8
Hewlett Harbor - 8
Hewlett Neck - 8.1
Hicksville - 8
Inwood - 8.1
Island Park - 8.1
Jericho - 8
Kensington - 8
Kings Point - 8
Lake Success - 8
Lakeview - 8
Lattingtown - 8
Laurel Hollow - 8
Lawrence - 8.1
Levittown - 8
Lido Beach - 8.1
Locust Valley - 8
Long Beach - 8.1
Lynbrook - 8
Malverne - 8
Malverne Park Oaks - 8
Manhasset - 8
Manhasset Hills - 8
Manorhaven - 8
Massapequa - 8
Massapequa Park - 8
Matinecock - 8
Melville - 8
Merrick - 8
Mill Neck - 8
Mineola - 8
Munsey Park - 8
Muttontown - 8
New Cassel - 8
New Hyde Park - 8
New York - 8.1
North Amityville - 8
North Bellmore - 8
North Hills - 8
North Lynbrook - 8
North Massapequa - 8
North Merrick - 8
North New Hyde Park - 8
North Valley Stream - 8
North Wantagh - 8
Oceanside - 8
Old Bethpage - 8
Old Brookville - 8
Old Westbury - 8
Oyster Bay - 8
Oyster Bay Cove - 8
Plainedge - 8
Plainview - 8
Plandome - 8
Plandome Heights - 8
Plandome Manor - 8
Point Lookout - 8.1
Port Washington - 8
Port Washington North - 8
Rockville Centre - 8
Roosevelt - 8
Roslyn - 8
Roslyn Estates - 8
Roslyn Harbor - 8
Roslyn Heights - 8
Russell Gardens - 8
Saddle Rock - 8
Salisbury - 8
Sands Point - 8
Sea Cliff - 8
Seaford - 8
Searingtown - 8
South Farmingdale - 8
South Floral Park - 8
South Hempstead - 8
South Valley Stream - 8
Stewart Manor - 8
Syosset - 8
Thomaston - 8
Uniondale - 8
University Gardens - 8
Upper Brookville - 8
Valley Stream - 8
Wantagh - 8
Westbury - 8
West Hempstead - 8
West Hills - 8
Williston Park - 8
Woodbury - 8
Woodmere - 8
Woodsburgh - 8.1