Lifeguards are warning swimmers and surfers about the potentially dangerous conditions.
"After a big swell, we have big holes in the ocean floor, and it causes more rip tides. So someone could be walking out and be waist-deep and all of the sudden, they're overhead," said Ocean Lifeguard Specialist Captain Remy Smith.
Lifeguards also advise that the water is very warm, which could lead to people getting too comfortable and into a bad situation.
The Malibu Pier has been reopened after last week's waves damaged pylons.
The Norbert swell coincides with the Malibu Surf Association Classic Invitational, a weekend-long competition.