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San Francisco County weather alerts

1 active alert for San Francisco County, California right now: a Beach Hazards Statement.

7 in the last 30 days 7 in 12 months (since Aug 30) most common: Beach Hazards Statement Get alerts on your phone →

Active alerts for San Francisco County

Refreshed every few minutes; times in PDT.

Moderate Expected

Beach Hazards Statement

Issued Sun, Sep 6, 2:09 PM PDT by NWS San Francisco CA Until Mon, Sep 7, 11:00 PM PDT (in 1 day)

Area: San Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

* WHAT...Increased risk of sneaker waves and strong rip currents due to incoming long period southerly swell associated with tropical activity in the Eastern Pacific Ocean. Breaking waves to around 10 feet expected. * WHERE...Pacific Coast beaches. * WHEN...Through Monday evening. * IMPACTS...Dangerous conditions are forecast along the shoreline. Hazards ...

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

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

Alert	Issued	Ended	Issued by
Beach Hazards Statement	Sep 5, 10:37 AM	Sep 7, 11:00 PM	San Francisco CA
Beach Hazards Statement	Sep 4, 9:03 PM	Sep 7, 11:00 PM	San Francisco CA
Beach Hazards Statement	Sep 4, 8:39 AM	Cancelled Sep 4, 9:04 PM	San Francisco CA
Beach Hazards Statement	Sep 3, 11:21 PM	Sep 7, 11:00 PM	San Francisco CA
Beach Hazards Statement	Sep 3, 6:40 AM	Sep 7, 11:00 PM	San Francisco CA
Beach Hazards Statement	Sep 2, 9:26 PM	Sep 7, 11:00 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.

Beach Hazards Statement

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.

Nearby

Alerts near San Francisco County

Neighbouring counties in California

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

Questions

About San Francisco County alerts

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

Install Forecast Bar, add San Francisco County 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. 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-county.json returns the active alerts, the last 30 days and the 12-month counts for San Francisco County, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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