Emergency services were called at 4pm yesterday (August 12) to reports a boat had seen a body in the water at Bognor Regis.
The lifeboat and helicopter attended and the woman was recovered at 4.45pm a mile out to sea. She was pronounced dead at 5pm.
The police said she had not yet been identified and her death was being treated as unexplained but not suspicious.
To read an eyewitness account see http://www.bognor.co.uk/news/top-stories/latest/update-body-found-in-sea-at-bognor-regis-1-5380600