The animal was seen in the vicinity of 900 North Cabrillo Highway about 2 a.m., county officials said.
The sighting was reported to the San Mateo County Sheriff’s Office and deputies searched the area, but they did not find the animal, officials said.
Mountain lion sightings are common in the county, and anyone who encounters one is advised to stay away and call the Sheriff’s Office.
In the event of a confrontation, experts advise facing the animal, trying to appear as large as possible, making noise and throwing objects at it.
More information about mountain lions can be found online at www.keepmewild.org.