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San Francisco weather alerts

2 active alerts for San Francisco, California right now: a Beach Hazards Statement and a Coastal Flood Advisory.

42 in the last 30 days 119 in 12 months (since Aug 30) most common: Coastal Flood Advisory Get alerts on your phone →

Active alerts for San Francisco County

NWS issues alerts by county; San Francisco is in San Francisco County. Refreshed every few minutes; times in PST.

Moderate Expected

Beach Hazards Statement

Issued Sun, Nov 8, 12:05 PM PST by NWS San Francisco CA Until Mon, Nov 9, 10:00 PM PST (in 1 day)

Area: San Francisco

* WHAT...For the Coastal Flood Advisory, up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, an increased risk for sneaker waves and strong rip currents with breaking waves of 12 to 16 ft expected. * WHERE...San Francisco. * WHEN...For the Coastal Flood Advisory...

What it means: Hazards such as rip currents, sneaker waves or cold water are expected at the beach.

Full alert with map and forecast →
Minor Expected

Coastal Flood Advisory

Issued Sun, Nov 8, 12:05 PM PST by NWS San Francisco CA Until Fri, Nov 13, 4:00 PM PST (in 5 days)

Area: San Francisco

* WHAT...For the Coastal Flood Advisory, up to 1.6 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, an increased risk for sneaker waves and strong rip currents with breaking waves of 12 to 16 ft expected. * WHERE...San Francisco. * WHEN...For the Coastal Flood Advisory...

What it means: Minor coastal flooding is expected, usually around high tide. Expect water on low-lying roads near the shore.

Full alert with map and forecast →

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Where

San Francisco County on the map

Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.

Last 30 days

Recent alerts for San Francisco County

AlertIssuedEndedIssued by
Coastal Flood Advisory 7:50 PM Nov 13, 4:00 PM San Francisco CA
Beach Hazards Statement 7:50 PM Nov 9, 10:00 PM San Francisco CA
Beach Hazards Statement Nov 7, 8:09 PM Nov 9, 10:00 PM San Francisco CA
Coastal Flood Advisory Nov 7, 8:09 PM Nov 13, 4:00 PM San Francisco CA
Coastal Flood Advisory Nov 7, 11:38 AM Nov 13, 4:00 PM San Francisco CA
Beach Hazards Statement Nov 7, 11:38 AM Nov 9, 10:00 PM San Francisco CA
Beach Hazards Statement Nov 6, 6:31 PM Nov 9, 10:00 PM San Francisco CA
Coastal Flood Advisory Nov 6, 6:31 PM Nov 13, 4:00 PM San Francisco CA
Coastal Flood Advisory Nov 6, 10:08 AM Nov 13, 4:00 PM San Francisco CA
Beach Hazards Statement Nov 6, 10:08 AM Nov 9, 10:00 PM San Francisco CA
Beach Hazards Statement Nov 5, 11:25 AM Nov 9, 10:00 PM San Francisco CA
Coastal Flood Advisory Nov 5, 11:25 AM Nov 13, 4:00 PM San Francisco CA
Coastal Flood Advisory Nov 5, 2:05 AM Nov 13, 4:00 PM San Francisco CA
Beach Hazards Statement Nov 5, 2:05 AM Nov 9, 10:00 PM San Francisco CA
Beach Hazards Statement Nov 5, 12:43 AM Nov 9, 10:00 PM San Francisco CA
Coastal Flood Advisory Nov 5, 12:43 AM Nov 13, 4:00 PM San Francisco CA
Coastal Flood Advisory Nov 5, 12:41 AM Nov 13, 4:00 PM San Francisco CA
Beach Hazards Statement Nov 5, 12:41 AM Nov 9, 10:00 PM San Francisco CA
Beach Hazards Statement Nov 4, 5:48 PM Nov 7, 7:00 PM San Francisco CA
Coastal Flood Advisory Nov 4, 5:48 PM Nov 9, 1:00 PM San Francisco CA
Beach Hazards Statement Nov 4, 10:05 AM Nov 7, 7:00 PM San Francisco CA
Coastal Flood Advisory Nov 4, 10:05 AM Nov 9, 1:00 PM San Francisco CA
Beach Hazards Statement Nov 4, 12:33 AM Nov 7, 7:00 PM San Francisco CA
Coastal Flood Advisory Nov 4, 12:33 AM Nov 9, 1:00 PM San Francisco CA
Beach Hazards Statement Nov 3, 7:51 PM Nov 3, 8:00 PM San Francisco CA
Coastal Flood Advisory Nov 3, 7:51 PM Nov 9, 1:00 PM San Francisco CA
Coastal Flood Advisory Nov 3, 11:25 AM Nov 9, 1:00 PM San Francisco CA
Beach Hazards Statement Nov 3, 11:25 AM Nov 3, 8:00 PM San Francisco CA
Beach Hazards Statement Nov 2, 5:08 AM Nov 3, 8:00 PM San Francisco CA
Coastal Flood Advisory Nov 1, 5:47 PM Nov 1, 6:00 PM San Francisco CA
Beach Hazards Statement Nov 1, 5:47 PM Nov 3, 8:00 PM San Francisco CA
Beach Hazards Statement Nov 1, 2:25 PM Nov 3, 8:00 PM San Francisco CA
Coastal Flood Advisory Nov 1, 2:25 PM Nov 1, 6:00 PM San Francisco CA
Beach Hazards Statement Nov 1, 1:07 AM Nov 3, 8:00 PM San Francisco CA
Coastal Flood Advisory Nov 1, 1:07 AM Nov 1, 6:00 PM San Francisco CA
Coastal Flood Advisory Nov 1, 1:05 AM Nov 1, 6:00 PM San Francisco CA
Beach Hazards Statement Nov 1, 1:05 AM Nov 3, 8:00 PM San Francisco CA
Beach Hazards Statement Oct 31, 5:58 PM Nov 3, 8:00 PM San Francisco CA
Coastal Flood Advisory Oct 31, 5:58 PM Nov 1, 6:00 PM San Francisco CA
Coastal Flood Advisory Oct 31, 4:45 AM Nov 1, 6:00 PM San Francisco CA

Pattern

What San Francisco County gets alerted for

Every alert that named San Francisco County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Coastal Flood Advisory
61
Beach Hazards Statement
41
Heat Advisory
10
Dense Fog Advisory
7

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Beach Hazards Statement

Hazards such as rip currents, sneaker waves or cold water are expected at the beach.

Coastal Flood Advisory

Minor coastal flooding is expected, usually around high tide. Expect water on low-lying roads near the shore.

Heat Advisory

Heat index values high enough to cause heat illness with prolonged exposure. Drink water, stay in air conditioning and check on neighbours.

Dense Fog Advisory

Visibility of a quarter mile or less is expected. Slow down and use low beams.

Nearby

Alerts near San Francisco

Cities

Daly City, CA3 Berkeley, CA1 South San Francisco, CA3 Alameda, CA1 Oakland, CA1 Richmond, CA1

Neighbouring counties in California

Marin County3 San Mateo County3 Contra Costa County1 Alameda County1 All of California →

Questions

About San Francisco alerts

How do I get San Francisco weather alerts on my iPhone?

Install Forecast Bar, add San Francisco as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for San Francisco County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.

Where do these alerts come from?

From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names San Francisco County, the county San Francisco sits in. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.

What is the difference between a watch, a warning and an advisory?

A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.

Can I get this data as JSON?

Yes. /weather-alerts/ca/san-francisco.json returns the active alerts, the last 30 days and the 12-month counts for San Francisco, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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