Bay Area Coastal Flood Advisory Runs Through Monday Ahead of New Rain

A ridge of high pressure has brought sunny skies and mild inland temperatures in the mid-to-upper 70s across Contra Costa County and the wider Bay Area in November 2026, even as the National Weather Service maintains a Coastal Flood Advisory through 1 p.m. Monday and tracks a return to wet weather next week.

Up to 1.6 Feet of Tidal Inundation Along San Pablo, San Francisco, and Monterey Bays

According to National Weather Service meteorologist Rachel Kennedy, high pressure building over Northern California pushed daytime temperatures into the mid-to-upper 70s across interior valleys, with localized pockets in the 80s in warm inland corridors such as the southern Santa Clara Valley and inland Central Coast.

Despite the calm inland weather, the National Weather Service issued a Coastal Flood Advisory beginning at 6 a.m. Wednesday and continuing through 1 p.m. Monday for low-lying bayside infrastructure, trails, and roadways bordering San Francisco Bay, San Pablo Bay, and Monterey Bay. Forecasters cautioned that peak tidal cycles could produce up to 1.6 feet of saltwater inundation in vulnerable shoreline zones.

Along open Pacific beaches, a Beach Hazard Statement in effect from Thursday through Saturday warned visitors to stay off rocks and jetties amid incoming ocean swell generating sneaker waves, strong rip currents, and breaking surf measuring between 12 feet and 16 feet high.

Rain Forecast to Return Past November 11 for a Wet Second Half of the Month

While dry conditions prevail through the start of the workweek, Kennedy noted that early atmospheric models indicate rain will return to the Bay Area by mid-to-late next week, with wet weather potentially persisting past November 11. Following beneficial early-November showers that eased the region into its winter precipitation season, forecasters expect the second half of November to bring a more active storm track.