Rescuers plucked four people from the ocean outside Long Beach Harbor after their boat capsized in big swells.
Los Angeles County Fire Dispatcher Ray Dong says a crew from a lifeguard boat made the rescue shortly before 7 a.m. Wednesday.
The 18-foot aluminum boat was off Alamitos Bay when it began taking on water.
The four rescued individuals were in the water for about an hour but no injuries were reported.
"They were just cold from being in the water for a long time," Captain Kenichi Haskett with the L.A. County Lifeguards tells KPCC.
A small craft advisory is in effect for Southern California. Swells up to 8 feet have been reported.
Exceptionally high tides known as "king tides" are making Southern California waters dangerous and choppy this week.
This story has been updated.