The Blackpool lifeboat was launched after reports that someone was in difficulty in the sea near North Pier.
But a member of the public managed to help the person out of the water before the crew arrived on the scene.
The emergency happened at just after 6pm tonight (Tuesday).
A Coastguard spokesman said: “We had a report of someone in the water, but the person was removed by a member of the public before the lifeboat got there.
“The person was handed over to the care of the ambulance service, although they weren’t injured.”