Nassau County, NY: Current UV Index and Hourly Forecast

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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

Current UV Index in Cities in Nassau County, NY

• Albertson - 9.6
• Atlantic Beach - 7.9
• Baldwin - 9.8
• Barnum Island - 7.9
• Baxter Estates - 9.6
• Bay Park - 9.6
• Bayville - 9.7
• Bellerose - 9.6
• Bellerose Terrace - 9.6
• Bellmore - 9.8
• Bethpage - 9.8
• Brookville - 9.8
• Carle Place - 9.8
• Cedarhurst - 9.6
• Centre Island - 9.7
• Cove Neck - 9.7
• East Atlantic Beach - 7.9
• East Hills - 9.6
• East Massapequa - 9.8
• East Meadow - 9.8
• East Norwich - 9.8
• East Rockaway - 9.6
• East Williston - 9.6
• Elmont - 9.6
• Farmingdale - 9.8
• Floral Park - 9.6
• Flower Hill - 9.6
• Franklin Square - 9.6
• Freeport - 9.8
• Garden City - 9.6
• Garden City Park - 9.6
• Garden City South - 9.6
• Glen Cove - 9.6
• Glen Head - 9.8
• Glenwood Landing - 9.6
• Great Neck - 9.6
• Great Neck Estates - 9.6
• Great Neck Gardens - 9.6
• Great Neck Plaza - 9.6
• Greenvale - 9.6
• Harbor Hills - 9.6
• Harbor Isle - 7.9
• Herricks - 9.6
• Hewlett - 9.6
• Hewlett Bay Park - 9.6
• Hewlett Harbor - 9.6
• Hewlett Neck - 7.9
• Hicksville - 9.8
• Inwood - 7.9
• Island Park - 7.9
• Jericho - 9.8
• Kensington - 9.6
• Kings Point - 9.6
• Lake Success - 9.6
• Lakeview - 9.6
• Lattingtown - 9.7
• Laurel Hollow - 9.8
• Lawrence - 7.9
• Levittown - 9.8
• Lido Beach - 8.1
• Locust Valley - 9.7
• Long Beach - 7.9
• Lynbrook - 9.6
• Malverne - 9.6
• Malverne Park Oaks - 9.6
• Manhasset - 9.6
• Manhasset Hills - 9.6
• Manorhaven - 9.6
• Massapequa - 9.8
• Massapequa Park - 9.8
• Matinecock - 9.8
• Merrick - 9.8
• Mill Neck - 9.7
• Mineola - 9.6
• Munsey Park - 9.6
• Muttontown - 9.8
• New Cassel - 9.8
• New Hyde Park - 9.6
• North Bellmore - 9.8
• North Hills - 9.6
• North Lynbrook - 9.6
• North Massapequa - 9.8
• North Merrick - 9.8
• North New Hyde Park - 9.6
• North Valley Stream - 9.6
• North Wantagh - 9.8
• Oceanside - 9.6
• Old Bethpage - 9.8
• Old Brookville - 9.8
• Old Westbury - 9.8
• Oyster Bay Cove - 9.8
• Plainedge - 9.8
• Plainview - 9.8
• Plandome - 9.6
• Plandome Heights - 9.6
• Plandome Manor - 9.6
• Point Lookout - 8.1
• Port Washington - 9.6
• Port Washington North - 9.6
• Rockville Centre - 9.6
• Roosevelt - 9.8
• Roslyn - 9.6
• Roslyn Estates - 9.6
• Roslyn Harbor - 9.6
• Roslyn Heights - 9.6
• Russell Gardens - 9.6
• Saddle Rock - 9.6
• Saddle Rock Estates - 9.6
• Salisbury - 9.8
• Sands Point - 9.6
• Sea Cliff - 9.6
• Seaford - 9.8
• Searingtown - 9.6
• South Farmingdale - 9.8
• South Floral Park - 9.6
• South Hempstead - 9.8
• South Valley Stream - 9.6
• Stewart Manor - 9.6
• Syosset - 9.8
• Thomaston - 9.6
• Uniondale - 9.8
• University Gardens - 9.6
• Upper Brookville - 9.8
• Valley Stream - 9.6
• Wantagh - 9.8
• West Hempstead - 9.6
• Westbury - 9.8
• Williston Park - 9.6
• Woodbury - 9.8
• Woodmere - 9.6
• Woodsburgh - 7.9