As predicted by National Park Service spokesman George Durgerian, the high tide reclaimed most of the jellyfish.
"The majority of the jellyfish have washed out to sea," Durgerian said Sunday.
The more than 10,000 circular, translucent moon jellyfish had spanned an area three miles long and 20 feet wide between Pacheco and Lawton streets.
Some were visible further south, near Noriega Street, Durgerian said.
Durgerian was at Ocean Beach Sunday around 2 p.m. and noted that the "cobblestone" walkway was no longer visible.
Durgerian said there are still hundreds of the jellyfish on the beach, though they are more scattered.
What caused the jellyfish to wash onto the beach is still unknown.
Durgerian said a large overnight swell might be the cause.
A park service biologist will be on hand to investigate the incident this week.
As of Sunday, it was unknown if jellyfish had washed up onto any other beaches in the area.
