Swimmers were advised against entering the water at Pryibil Beach...

Swimmers were advised against entering the water at Pryibil Beach in Glen Cove on Sunday. Credit: Morgan Campbell

Long Island's summer beach season kicked off Memorial Day weekend with a warning against swimming at 83 beaches in Nassau and Suffolk counties.

This holiday weekend has been marked by rainy weather, cool temperatures and advisories to stay out of the water due to the chance that storm runoff could bring a higher concentration of bacteria.

The Nassau County Health Department issued an advisory Sunday against swimming at 20 beaches, 16 on the North Shore and four on the South Shore.

The advisory was "a precautionary measure for beaches known to be impacted by stormwater runoff caused by heavy rainfall," the health department said in its statement.

The advisory would end Monday morning unless heavy rain continued or if testing showed bacterial levels that exceed the standards for safe swimming, the statement said. 

When rain falls on impermeable surfaces, it carries animal feces — especially from domestic dogs when humans don’t pick up after them — into nearby streams and bays. Leaking cesspools and septic systems also contribute to the problem, according to Save the Sound's most recent beach report, released last week.

The Nassau advisory was issued for these North Shore beaches:

  • Centre Island Sound
  • Creek Club 
  • Crescent Beach 
  • Lattingtown Beach
  • Laurel Hollow Beach 
  • Morgan Sound 
  • North Hempstead Beach Park 
  • Piping Rock Beach Club 
  • Pryibil Beach
  • Ransom Beach 
  • Theodore Roosevelt Beach 
  • Sea Cliff Village Beach 
  • Sea Cliff Yacht Club Beach 
  • Soundside Beach
  • Stehli Beach 
  • Tappen Beach 

The advisory was issued for these South Shore beaches:

  • Biltmore Beach Club
  • Hewlett Point Beach 
  • Island Park Beach 
  • Philip Healey Beach

The Suffolk County Department of Health Services said that swimming is ill-advised until the waterways are "flushed by two successive tidal cycles" after the rain stops. The National Weather Service forecasts a 90 percent chance of rain throughout Memorial Day, starting before 11 a.m.

Bathers were advised to avoid these Suffolk County beaches:

Amityville Village Beach

Asharoken Beach

Bayberry Cove Beach

Baycrest Association Beach

Bay Hills Beach Association 

Bayport Beach

Bayview Beach

Beech Road Beach 

Benjamins Beach 

Brightwaters Village Beach

Broadway Beach 

Callahans Beach

Crab Meadow Beach

Centerport Beach

Cold Spring Harbor Beach Club

Corey Beach

Crescent Beach

Eagle Dock Community Beach

East Islip Beach

Fleets Cove Beach

Friendship Drive Beach 

Gold Star Battalion Park Beach

Grantland Beach

Havens Beach

Head of the Bay Club Beach

Hobart Beach (Cove)

Hobart Beach (Sound)

Huntington Beach Community Association Beach

Indian Field Beach

Knollwood Beach Association Beach

Little Bay Beach

Lloyd Harbor Village Park Beach

Lloyd Neck Bath Club Beach

Long Beach

Miller Place Park Beach

Nissequogue Point Beach

Prices Bend Beach

Ronkonkoma Beach 

Sayville Marina Park Beach

Scotts Beach

Shoreham Village Beach

Shoreham Beach

Shoreham Shore Club Beach

Short Beach

Sound Beach POA 

Soundview Beach Association Beach

Steers Beach

Stony Brook Beach

Tanner Park

Terraces on the Sound

Tides Beach

Valley Grove Beach

Venetian Shores Beach

West Islip Beach

West Oaks Recreation Club Beach

Wincoma Association Beach

Woodhull Landing POA Beach

From celebrating America's 250th birthday to a new ride at Adventureland, NewsdayTV's Elisa DiStefano and Newsday lifestyle editor Meghan Giannotta have your inside look at Newsday's summer FunBook. Credit: Newsday/Howard Schnapp, Kendall Rodriguez, Drew Singh; Anthony Florio, Randee Daddona, Morgan Campbell, Debbie Egan-Chin

Get ready for sun and fun with NewsdayTV's summer FunBook special! From celebrating America's 250th birthday to a new ride at Adventureland, NewsdayTV's Elisa DiStefano and Newsday lifestyle editor Meghan Giannotta have your inside look at Newsday's summer FunBook.

From celebrating America's 250th birthday to a new ride at Adventureland, NewsdayTV's Elisa DiStefano and Newsday lifestyle editor Meghan Giannotta have your inside look at Newsday's summer FunBook. Credit: Newsday/Howard Schnapp, Kendall Rodriguez, Drew Singh; Anthony Florio, Randee Daddona, Morgan Campbell, Debbie Egan-Chin

Get ready for sun and fun with NewsdayTV's summer FunBook special! From celebrating America's 250th birthday to a new ride at Adventureland, NewsdayTV's Elisa DiStefano and Newsday lifestyle editor Meghan Giannotta have your inside look at Newsday's summer FunBook.

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