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San Diego weather alerts

4 active alerts for San Diego, California right now: 3 Extreme Heat Warnings and a Beach Hazards Statement.

44 in the last 30 days 214 in 12 months (since Aug 30) most common: Extreme Heat Warning Get alerts on your phone →

Active alerts for San Diego County

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

Severe Expected

Extreme Heat Warning

Issued Mon, Oct 5, 3:19 AM PDT by NWS San Diego CA Until Thu, Oct 8, 8:00 PM PDT (in 4 days)

Area: Santa Ana Mountains and Foothills

* WHAT...Dangerously hot conditions with high temperatures 90s. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

What it means: Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.

Full alert with map and forecast →
Severe Expected

Extreme Heat Warning

Issued Mon, Oct 5, 3:19 AM PDT by NWS San Diego CA Until Thu, Oct 8, 8:00 PM PDT (in 4 days)

Area: San Diego County Coastal Areas

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to lower 90s at the beaches to the mid 90s to around 100 for the mesas and other higher coastal terrain. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat...

What it means: Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.

Full alert with map and forecast →
Severe Expected

Extreme Heat Warning

Issued Mon, Oct 5, 3:19 AM PDT by NWS San Diego CA Until Thu, Oct 8, 8:00 PM PDT (in 4 days)

Area: San Diego County Inland Valleys

* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

What it means: Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.

Full alert with map and forecast →
Moderate Expected Starts in 1 day

Beach Hazards Statement

Issued Mon, Oct 5, 1:21 AM PDT by NWS San Diego CA Until Fri, Oct 9, 11:00 PM PDT (in 5 days)

Area: San Diego County Coastal Areas; Orange County Coastal

* WHAT...Minor coastal flooding and dangerous rip currents expected due to the combination of high tides and elevated surf. * WHERE...San Diego and Orange County Coastal Areas. * WHEN...From Tuesday afternoon through Friday evening. * IMPACTS...Minor coastal flooding and minor coastal erosion is possible during high tides, most likely during the evenings....

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 Diego 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 Diego County

AlertIssuedEndedIssued by
Beach Hazards Statement Oct 4, 9:48 PM Oct 9, 11:00 PM San Diego CA
Extreme Heat Warning Oct 4, 9:10 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 9:10 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 9:10 PM Oct 8, 8:00 PM San Diego CA
Beach Hazards Statement Oct 4, 12:04 PM Oct 9, 11:00 PM San Diego CA
Extreme Heat Warning Oct 4, 11:32 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 11:32 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 11:32 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 4:28 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 4:28 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 4, 4:28 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 9:40 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 9:40 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 9:40 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 6:05 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 6:05 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 6:05 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 3, 12:03 PM Oct 3, 6:00 PM San Diego CA
Wind Advisory Oct 3, 12:03 PM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 3, 12:03 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 12:03 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 12:03 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 3, 12:03 PM Oct 3, 6:00 PM San Diego CA
Wind Advisory Oct 3, 4:01 AM Oct 3, 6:00 PM San Diego CA
Wind Advisory Oct 3, 4:01 AM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 3, 4:01 AM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 3, 4:01 AM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 3, 4:01 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 3, 4:01 AM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 2, 9:27 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 2, 9:27 PM Oct 3, 6:00 PM San Diego CA
Wind Advisory Oct 2, 9:27 PM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 2, 9:27 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 2, 9:27 PM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 2, 9:27 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 2, 12:25 PM Oct 3, 6:00 PM San Diego CA
Extreme Heat Warning Oct 2, 12:25 PM Oct 8, 8:00 PM San Diego CA
Extreme Heat Warning Oct 2, 12:25 PM Oct 8, 8:00 PM San Diego CA
Wind Advisory Oct 2, 12:25 PM Oct 3, 6:00 PM San Diego CA
Wind Advisory Oct 2, 12:25 PM Oct 3, 6:00 PM San Diego CA

Pattern

What San Diego County gets alerted for

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

Extreme Heat Warning
87
Heat Advisory
39
Coastal Flood Advisory
30
Beach Hazards Statement
16
Wind Advisory
15
High Surf Advisory
14
Flood Advisory
4
Special Weather Statement
4
Extreme Heat Watch
3
Severe Thunderstorm Warning
2

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.

Extreme Heat Warning

Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.

Beach Hazards Statement

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

Wind Advisory

Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.

Heat Advisory

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

Coastal Flood Advisory

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

High Surf Advisory

Large breaking waves are expected on beaches, with dangerous rip currents. Stay off jetties and out of the water.

Flood Advisory

Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.

Special Weather Statement

A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.

Extreme Heat Watch

Extremely dangerous heat is possible. Make plans to stay cool and hydrated.

Severe Thunderstorm Warning

A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Nearby

Alerts near San Diego

Cities

La Mesa, CA4 Santee, CA4 El Cajon, CA4 National City, CA4 Chula Vista, CA4 Encinitas, CA4

Neighbouring counties in California

Riverside County2 Orange County4 Imperial County1 All of California →

Questions

About San Diego alerts

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

Install Forecast Bar, add San Diego as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for San Diego 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 Diego County, the county San Diego 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-diego.json returns the active alerts, the last 30 days and the 12-month counts for San Diego, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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