The advisory was dropped at 8:10 a.m. after it was determined that there was no longer a risk of severe tidal surges as a result of Japan's magnitude-8.9 earthquake, according to the National Weather Service.
Tsunami advisories were canceled for Orange and San Diego counties overnight.
The effects of Thursday's massive quake were minimal at Southern California marinas, though some unusual surges were reported.
Officials in Ventura said harbor surges during high tide split a dock in half and broke boats from their moorings.
Officials warn that "abrupt tidal surges" could continue Saturday in local harbors and that people should be cautious at marinas and beaches.
An advisory is the lowest level tsunami alert.
The Associated Press contributed to this report.
