Nassau County, NY: Current UV Index and Hourly Forecast

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As of 6:00 PM EDT on August 18, 2026, all 131 cities in Nassau County, NY in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Long Beach, NY with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Nassau County, NY is expected to be 8.2 in Long Beach 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 - 0.6
• Atlantic Beach - 0.7
• Baldwin - 0.6
• Barnum Island - 0.7
• Baxter Estates - 0.6
• Bay Park - 0.6
• Bayville - 0.4
• Bellerose - 0.6
• Bellerose Terrace - 0.6
• Bellmore - 0.6
• Bethpage - 0.6
• Brookville - 0.6
• Carle Place - 0.6
• Cedarhurst - 0.6
• Centre Island - 0.4
• Cove Neck - 0.4
• East Atlantic Beach - 0.7
• East Hills - 0.6
• East Massapequa - 0.6
• East Meadow - 0.6
• East Norwich - 0.6
• East Rockaway - 0.6
• East Williston - 0.6
• Elmont - 0.6
• Farmingdale - 0.6
• Floral Park - 0.6
• Flower Hill - 0.6
• Franklin Square - 0.6
• Freeport - 0.6
• Garden City - 0.6
• Garden City Park - 0.6
• Garden City South - 0.6
• Glen Cove - 0.6
• Glen Head - 0.6
• Glenwood Landing - 0.6
• Great Neck - 0.6
• Great Neck Estates - 0.6
• Great Neck Gardens - 0.6
• Great Neck Plaza - 0.6
• Greenvale - 0.6
• Harbor Hills - 0.6
• Harbor Isle - 0.7
• Herricks - 0.6
• Hewlett - 0.6
• Hewlett Bay Park - 0.6
• Hewlett Harbor - 0.6
• Hewlett Neck - 0.7
• Hicksville - 0.6
• Inwood - 0.7
• Island Park - 0.7
• Jericho - 0.6
• Kensington - 0.6
• Kings Point - 0.6
• Lake Success - 0.6
• Lakeview - 0.6
• Lattingtown - 0.4
• Laurel Hollow - 0.6
• Lawrence - 0.7
• Levittown - 0.6
• Lido Beach - 0.6
• Locust Valley - 0.4
• Long Beach - 0.7
• Lynbrook - 0.6
• Malverne - 0.6
• Malverne Park Oaks - 0.6
• Manhasset - 0.6
• Manhasset Hills - 0.6
• Manorhaven - 0.6
• Massapequa - 0.6
• Massapequa Park - 0.6
• Matinecock - 0.6
• Merrick - 0.6
• Mill Neck - 0.4
• Mineola - 0.6
• Munsey Park - 0.6
• Muttontown - 0.6
• New Cassel - 0.6
• New Hyde Park - 0.6
• North Bellmore - 0.6
• North Hills - 0.6
• North Lynbrook - 0.6
• North Massapequa - 0.6
• North Merrick - 0.6
• North New Hyde Park - 0.6
• North Valley Stream - 0.6
• North Wantagh - 0.6
• Oceanside - 0.6
• Old Bethpage - 0.6
• Old Brookville - 0.6
• Old Westbury - 0.6
• Oyster Bay Cove - 0.6
• Plainedge - 0.6
• Plainview - 0.6
• Plandome - 0.6
• Plandome Heights - 0.6
• Plandome Manor - 0.6
• Point Lookout - 0.6
• Port Washington - 0.6
• Port Washington North - 0.6
• Rockville Centre - 0.6
• Roosevelt - 0.6
• Roslyn - 0.6
• Roslyn Estates - 0.6
• Roslyn Harbor - 0.6
• Roslyn Heights - 0.6
• Russell Gardens - 0.6
• Saddle Rock - 0.6
• Saddle Rock Estates - 0.6
• Salisbury - 0.6
• Sands Point - 0.6
• Sea Cliff - 0.6
• Seaford - 0.6
• Searingtown - 0.6
• South Farmingdale - 0.6
• South Floral Park - 0.6
• South Hempstead - 0.6
• South Valley Stream - 0.6
• Stewart Manor - 0.6
• Syosset - 0.6
• Thomaston - 0.6
• Uniondale - 0.6
• University Gardens - 0.6
• Upper Brookville - 0.6
• Valley Stream - 0.6
• Wantagh - 0.6
• West Hempstead - 0.6
• Westbury - 0.6
• Williston Park - 0.6
• Woodbury - 0.6
• Woodmere - 0.6
• Woodsburgh - 0.7