A high surf advisory is in effect for San Diego's beaches through Christmas Day, according to the National Weather Service.
The advisory kicked in Saturday at about 10 p.m. and will be in effect through Wednesday at 4 p.m.
On Tuesday, Christmas Eve, wave heights will start at 6 feet and reach 14 feet, according to NBC 7 meteorologist Brooke Martell.
The coast of La Jolla will be getting some very active waves Tuesday morning through 9 a.m. High tide peaked around 4:36 a.m. ahead of low tide at 11:45 a.m., according to Martell.
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Watch for flooding, the high surf could produce minor coastal flooding in some low-lying areas.
No white Christmas, but rain likely for Christmas Eve in most of San Diego County
NBC 7's Francella Perez said the waves were going to create life-threatening surfing and swimming conditions, and that officials were urging people who were not very experienced surfers and swimmers to stay out of the water, and away from jetties and piers. She also said another swell is expected next week.
Weather
Saturday was the first day of winter. What will winter be like in San Diego this time? Learn more about San Diego's winter outlook and the return of La Niña here.