Weather
California Weather Nov. 4-9: San Francisco Coastal Flood Advisory Warns of 1.6-Foot Inundation, 12-16 Foot Breaking Waves
SAN FRANCISCO, CA – Coastal flooding and dangerous surf conditions are expected along San Francisco's shoreline through the weekend, with high tides potentially producing up to 1.6 feet of inundation
By Lauren Beckett · 2026-11-04T10:57:51.009Z
SAN FRANCISCO, CA – Coastal flooding and dangerous surf conditions are expected along San Francisco's shoreline through the weekend, with high tides potentially producing up to 1.6 feet of inundation above ground level in low lying coastal areas as breaking waves reach 12 to 16 feet.
The National Weather Service in San Francisco has issued a Coastal Flood Advisory from 6 a.m. Wednesday, Nov. 4, until 1 p.m. Monday, Nov. 9 , alongside a Beach Hazards Statement effective from 5 a.m. Thursday through 7 p.m. Saturday.
The advisory warns that elevated tides could flood low lying infrastructure, cause isolated road closures and contribute to coastal erosion. Rising water levels may also push waves farther onto beaches than normal, limiting escape routes for people near the shoreline.
The highest tides are expected Saturday through Monday , when water levels at the San Francisco tidal gauge are forecast to reach 1.6 feet above normal.
Wednesday morning's high tide is projected at 8:00 a.m., reaching 1.0 foot above normal. Thursday's high tide is forecast at 8:35 a.m., reaching 1.3 feet above normal, followed by 1.4 feet Friday morning.
Saturday and Sunday's morning high tides are forecast to reach 1.6 feet above normal, with another 1.6 foot departure expected Monday morning.
The Weather Service notes these predictions include up to 1.2 feet of surge, which will enhance the astronomical tide and flooding threat.
Beach conditions will also become hazardous Thursday through Saturday , with breaking waves of 12 to 16 feet and an increased risk of strong rip currents and sneaker waves.
Waves could sweep across beaches, jetties and rocks without warning, potentially pulling people into the ocean.
The Weather Service urges residents and visitors to stay off jetties, piers and rocks, remain out of the water and avoid driving through flooded roadways.
Away from the immediate shoreline, San Francisco's forecast calls for mostly sunny skies and temperatures climbing from 66 degrees Wednesday to 73 degrees Saturday.
Despite the generally dry weather, coastal flooding remains possible during high tide periods through Monday afternoon, with hazardous surf conditions continuing through Saturday evening.