Nassau County, NY: Current UV Index and Hourly Forecast

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As of 3:51 PM EDT on July 15, 2025, all 131 cities in Nassau County, NY in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Long Beach, NY with a reading of 7.1.

Over the next 24 hours, the highest UV Index reading in Nassau County, NY is expected to be 9.6 in Levittown between 1:00 PM - 2:00 PM EDT tomorrow.

Search Cities in Nassau County, NY

Current UV Index in Cities in Nassau County, NY

• Albertson - 5.7
• Atlantic Beach - 7.1
• Baldwin - 6.7
• Barnum Island - 7.1
• Baxter Estates - 5.7
• Bay Park - 5.7
• Bayville - 6.7
• Bellerose - 5.7
• Bellerose Terrace - 5.7
• Bellmore - 6.7
• Bethpage - 6.7
• Brookville - 6.7
• Carle Place - 6.7
• Cedarhurst - 5.7
• Centre Island - 6.7
• Cove Neck - 6.7
• East Atlantic Beach - 7.1
• East Hills - 5.7
• East Massapequa - 6.7
• East Meadow - 6.7
• East Norwich - 6.7
• East Rockaway - 5.7
• East Williston - 5.7
• Elmont - 5.7
• Farmingdale - 6.7
• Floral Park - 5.7
• Flower Hill - 5.7
• Franklin Square - 5.7
• Freeport - 6.7
• Garden City - 5.7
• Garden City Park - 5.7
• Garden City South - 5.7
• Glen Cove - 5.7
• Glen Head - 6.7
• Glenwood Landing - 5.7
• Great Neck - 5.7
• Great Neck Estates - 5.7
• Great Neck Gardens - 5.7
• Great Neck Plaza - 5.7
• Greenvale - 5.7
• Harbor Hills - 5.7
• Harbor Isle - 7.1
• Herricks - 5.7
• Hewlett - 5.7
• Hewlett Bay Park - 5.7
• Hewlett Harbor - 5.7
• Hewlett Neck - 7.1
• Hicksville - 6.7
• Inwood - 7.1
• Island Park - 7.1
• Jericho - 6.7
• Kensington - 5.7
• Kings Point - 5.7
• Lake Success - 5.7
• Lakeview - 5.7
• Lattingtown - 6.7
• Laurel Hollow - 6.7
• Lawrence - 7.1
• Levittown - 6.7
• Lido Beach - 7.1
• Locust Valley - 6.7
• Long Beach - 7.1
• Lynbrook - 5.7
• Malverne - 5.7
• Malverne Park Oaks - 5.7
• Manhasset - 5.7
• Manhasset Hills - 5.7
• Manorhaven - 5.7
• Massapequa - 6.7
• Massapequa Park - 6.7
• Matinecock - 6.7
• Merrick - 6.7
• Mill Neck - 6.7
• Mineola - 5.7
• Munsey Park - 5.7
• Muttontown - 6.7
• New Cassel - 6.7
• New Hyde Park - 5.7
• North Bellmore - 6.7
• North Hills - 5.7
• North Lynbrook - 5.7
• North Massapequa - 6.7
• North Merrick - 6.7
• North New Hyde Park - 5.7
• North Valley Stream - 5.7
• North Wantagh - 6.7
• Oceanside - 5.7
• Old Bethpage - 6.7
• Old Brookville - 6.7
• Old Westbury - 6.7
• Oyster Bay Cove - 6.7
• Plainedge - 6.7
• Plainview - 6.7
• Plandome - 5.7
• Plandome Heights - 5.7
• Plandome Manor - 5.7
• Point Lookout - 7.1
• Port Washington - 5.7
• Port Washington North - 5.7
• Rockville Centre - 5.7
• Roosevelt - 6.7
• Roslyn - 5.7
• Roslyn Estates - 5.7
• Roslyn Harbor - 5.7
• Roslyn Heights - 5.7
• Russell Gardens - 5.7
• Saddle Rock - 5.7
• Saddle Rock Estates - 5.7
• Salisbury - 6.7
• Sands Point - 5.7
• Sea Cliff - 5.7
• Seaford - 6.7
• Searingtown - 5.7
• South Farmingdale - 6.7
• South Floral Park - 5.7
• South Hempstead - 6.7
• South Valley Stream - 5.7
• Stewart Manor - 5.7
• Syosset - 6.7
• Thomaston - 5.7
• Uniondale - 6.7
• University Gardens - 5.7
• Upper Brookville - 6.7
• Valley Stream - 5.7
• Wantagh - 6.7
• West Hempstead - 5.7
• Westbury - 6.7
• Williston Park - 5.7
• Woodbury - 6.7
• Woodmere - 5.7
• Woodsburgh - 7.1