New Year’s revellers on the NSW coast are being urged to stay out of the water today, with two ocean search missions and one drowning already logged in the past 24 hours.

Wild weather has closed down beaches along the coast, including Sydney, with dangerous conditions making beach activities unsafe.

Emergency services were called to Coogee Beach, Coogee, just after 6am following reports a man, believed to be aged in his 20s, was in trouble in the water.

Police, Marine Area Command, NSW Ambulance, Surf Life Saving NSW and Randwick City Council are helping search for the man.

Police are searching for a missing man at Coogee beach. (Nine)

Searchers are battling choppy surf, lot of currents and rips, rain, and wind.

Two other people with the man were able to be rescued after they were swept out in the same rip, with an on-duty police officer rushing into the water to assist.

Earlier this morning, police recovered a body after a woman was swept into the ocean in Maroubra.

At about 4am, emergency services were called to Maroubra Beach on Marine Parade.

They were told a 25-year-old woman had been knocked into a tidal rock pool by a wave, before further waves dragged her into the ocean.

A woman is believed dead after she was swept out to sea at Maroubra Beach, Sydney. (9News)

Police searched the waters for about an hour before finding a body at about 5am.

The body is yet to be formally identified but is believed to be that of the woman.

A report will be prepared for the coroner.

Meanwhile, a search also continues for a 14-year-old boy missing after a boat overturned off North Palm Beach.

Surf Life Saving NSW chief executive Steve Pearce said there had been a wave of rescues up and down the coast in recent days.

A number of these rescues had involved groups of children.

From Christmas to December 30, lifesavers in NSW carried out 85 rescues, 419 provisions of first aid, and more than 40,000 preventative actions.

“This spate of drownings and rescues have caught everyone off guard over the new year’s period,” Pearce said.

“We are pleading for people – do not enter the water today, if that beach is closed.”

Along the NSW coast, 68 beaches are closed, including most of metropolitan Sydney’s.

Randwick Council notified residents and visitors that all its beaches had closed today due to the conditions, which included large and powerful surf.

People should avoid swimming, rock fishing and all other coastal activities.

The closed beaches include Coogee, Maroubra, Clovelly, Little Bay and Malabar beaches.