SAN FRANCISCO -- A 19-year-old man who wound up in the frigid waters of San Francisco Bay is expected to recover after emergency crews rescued him early Monday morning, fire officials said.

San Francisco fire crews responded to a report about 6:09 a.m. that somebody was in the water about 200 yards west of the Hyde Street Pier, San Francisco Fire spokeswoman Mindy Talmadge said in an email. Fire crews who arrived heard the man calling for help and tried to coax him into swimming toward the pier while sending a rescue boat and jet ski to him.

The rescue boat took the man out of the water at 6:25 a.m. He was taken to the Rescue Boat Pier at Scott Street and then taken by ambulance to San Francisco General Hospital. He was fully clothed while in the water and was suffering from life-threatening hypothermia, Talmadge said.

Fire officials said the man never lost consciousness.

Rick Hurd covers breaking news. Contact him at 925-945-4780 and follow him at Twitter.com/3rdERH.