SAN FRANCISCO — The first days of December bring mild sunshine above and high tides below as parts of the Bay Area face a Coastal Flood Advisory through 3 p.m. Thursday, according to the National Weather Service in Monterey.
Forecasters say astronomically high tides, locally known as “King Tides,” are expected to push water levels along San Francisco Bay, the Peninsula, and North Bay shorelines high enough to cause minor flooding in low-lying areas. Parking lots, waterfront trails, and sections of Embarcadero Roadway and Highway 37 could see ponding or brief closures during peak tide cycles.
Residents and commuters are urged to plan travel around midmorning and early afternoon high tides and avoid driving through flooded intersections. Even shallow saltwater can damage vehicles and corrode infrastructure, officials warn.
At the coast, a Beach Hazard Statement remains in effect until 10 p.m. Wednesday, cautioning visitors about strong rip currents and sneaker waves from lingering Pacific swell. Those visiting beaches in Marin, San Mateo, and Monterey counties should stay well back from the surf zone and never turn their back on the ocean.
Despite the hazards, the region will enjoy pleasant December weather, with mostly sunny skies and highs in the lower 60s°F through the weekend. Nights remain cool in the upper 40s°F with light winds and crisp air.
Five-Day Local Outlook:
- Today: Becoming sunny, high 62°F.
- Wednesday: Sunny, high 62°F.
- Thursday: Mostly sunny, high 61°F.
- Friday: Sunny, high 62°F.
- Saturday: Clear and calm, high 63°F.
