Weather
Bay Area, CA Weather Alert: 16-Foot Waves Possible Oct. 11-12
San Francisco, CA — Rising tides could push seawater across low lying coastal roads, parks and shoreline trails around San Francisco through Tuesday, October 13. Dangerous surf adds another threat, wi
By Tessa Morgan · 2026-10-11T12:10:39.195Z
San Francisco, CA — Rising tides could push seawater across low lying coastal roads, parks and shoreline trails around San Francisco through Tuesday, October 13. Dangerous surf adds another threat, with breaking waves potentially reaching 16 feet.
According to the National Weather Service in San Francisco, a Coastal Flood Advisory remains in effect until 3 p.m. Tuesday. Flooding up to 1.4 feet above ground level is possible in vulnerable coastal locations.
The advisory covers San Francisco, northern and southern Monterey Bay, and the Big Sur coastline.
Forecasters warn that high tides could temporarily flood parking lots, coastal trails and roadways, potentially forcing isolated closures.
A separate Beach Hazards Statement remains active through Monday evening, October 12.
Strong rip currents, sneaker waves and breaking waves up to 16 feet could threaten beachgoers, particularly near rocks, jetties and exposed shorelines.
Sunday's high tide in San Francisco is expected around 12:18 p.m., reaching approximately 1.4 feet above normal.
Monday brings another elevated tide near 1:14 p.m., reaching approximately 1.1 feet above normal.
Residents should avoid flooded roads, remain away from dangerous surf and monitor changing coastal conditions.
Despite the hazards, San Francisco's inland weather remains relatively calm.
Sunday, October 11, brings sunshine and temperatures near 64 degrees, with light southwest winds.
Columbus Day, Monday, October 12, should remain sunny, with highs around 66 degrees.
Tuesday brings additional sunshine and temperatures near 68 degrees as the coastal advisory continues into the afternoon.
The five day outlook shows Wednesday reaching 71 degrees, followed by Thursday highs near 77.
Friday could reach 78 degrees before temperatures ease to approximately 75 Saturday.
Although warmer weather approaches, coastal flooding and hazardous surf remain the primary safety concerns through early Tuesday.