Sixty-four beaches in Suffolk County have been closed to swimming following Thursday's heavy rain which brought the potential for higher-than-acceptable bacteria levels, county health officials said Friday.

These beaches are in areas that are heavily impacted by storm water runoff and benefit from just limited tidal flushing, officials said.

Beachgoers are advised against swimming and other water contact, allowing for two tidal cycles to flush the waters, with the advisory expected to be lifted Saturday morning, the health department said.

See alsoBeach Finder: Ultimate Guide to Fun in the Sun

In addition to the beaches below, Wading River Beach, closed Sept. 8, remains closed to swimming as a result of high bacteria levels.

Monitor conditions by calling the county's beach hotline at 631-852-5822.

Town of Babylon: Amityville Village Beach, Tanner Park Beach, Venetian Shores Beach, Copiague Harbor (Great South Bay)

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Town of Brookhaven: Sound Beach West, Tides Beach, Beech Road Beach, Broadway Beach, Friendship Drive Beach, Shoreham Village Beach, Shoreham Beach, Corey Beach, Shirley Beach, Stony Brook Beach, Shoreham Shore Club Beach, Miller Place Park Beach, Scotts Beach, Woodhull Landing POA Beach, Bayberry Cove Beach, Bayview Beach, Grantland Beach, Indian Field Beach, Little Bay Beach, Soundview Beach Association Beach, Terraces on the Sound.

Town of East Hampton: Havens Beach

Town of Huntington: Eagle Dock Community Beach, Cold Spring Harbor Beach Club Beach, West Neck Beach, Lloyd Neck Bath Club Beach, Lloyd Harbor Village Park Beach, Gold Star Battalion Park Beach, Head of the Bay Club Beach, Nathan Hale Beach Club Beach, Baycrest Association Beach, Bay Hills Beach Association, Crescent Beach, Knollwood Beach Association Beach, Fleets Cove Beach, Centerport Beach, Huntington Beach Community Association Beach, Centerport Yacht Club, Steers Beach, Asharoken Beach, Hobart Beach, Crab Meadow Beach, Wincoma Association Beach, Valley Grove Beach, Prices Bend Beach

Town of Islip: West Islip Beach, Benjamins Beach, Islip Beach, East Islip Beach, West Oaks Recreation Club Beach, Brightwaters Village Beach, Bayport Beach, Sayville Marina Park Beach, Lake Ronkonkoma - Islip Town Beach, Bayberry Beach & Tennis Club Beach

Town of Smithtown: Callahans Beach, Short Beach, Nissequogue Point Beach, Long Beach, Schubert Beach