Search continues for young man after woman found drowned at Sydney beach

A woman in her 20s has drowned at a Sydney beach and lifeguards are searching for a missing man.

The woman's body was discovered washed up at Maroubra Beach by a jogger at about 6am this morning, according to NSW Surf Life Saving.

It's believed a man, also in his 20s, was with the woman and he's yet to be found.

A search effort is underway in choppy conditions involving the Westpac Rescue Helicopter, police, and lifeguards on jet skis.

A number of beaches in NSW are closed due to treacherous weather conditions with only Coogee Beach open in Sydney.