San Diego County, CA

Alerts

Warning Area
Advisory Area
County Line

Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Sunday 07/26 11:14 AM PDT – Monday 07/27 8:00 PM PDT

Issued by NWS San Diego CA

What

Dangerously hot conditions with high temperatures 110 to 115 and lows in the mid 80s to low 90s.

Where

Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning.

When

Until 8 PM PDT Monday.

Impacts

Heat related illnesses increase significantly during extreme heat events.

Additional Details

Major to locally Extreme HeatRisk. Elevated low temperatures will limit overnight relief from the heat.

What to Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Areas Impacted

  • Coachella Valley
  • San Diego County Deserts
  • San Gorgonio Pass Near Banning

Tips to Stay Safe

An Extreme Heat Warning means that extremely dangerous heat conditions are happening now or soon. You must take precautions to protect yourself and others from extreme heat. 

  • Stay inside in air conditioning if possible. If you don’t have air conditioning, go to a library, mall, or local cooling center. 
  • Drink plenty of water to stay hydrated, and wear loose, light-colored clothing. 
  • Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone. 
  • Reschedule outdoor activities for a cooler day.
  • If you must be outdoors, take longer and more frequent breaks in the shade or air conditioning, and avoid the hottest parts of the day.
  • Bring pets indoors if possible. If pets are left outside, make sure they have shade and plenty of cool water. 
  • Make sure you know the signs of heat-related illness and how to respond.

In effect from Sunday 07/26 11:14 AM PDT – Monday 07/27 8:00 PM PDT

Issued by NWS San Diego CA

What

High temperatures in the mid 80s for the mesas and low temperatures in the upper 60s and lower 70s.

Where

San Diego County Coastal Areas.

When

Until 8 PM PDT Monday.

Impacts

Hot temperatures may cause heat illnesses.

What to Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Areas Impacted

  • San Diego County Coastal Areas

Tips to Stay Safe

A Heat Advisory means dangerous heat conditions are happening now or soon. Take action before, during and after the heat to stay safe. 

  • Stay in air-conditioned spaces if possible. Find cooling centers or places with AC in your community that you can go to, like libraries or shopping malls. 
  • Stay hydrated and stock up on clean drinking water to get you through multiple days of heat.
  • Reschedule outdoor activities for cooler times of the day, and take breaks in the shade or air conditioning.
  • Cover windows with curtains or shades, or use window reflectors designed to reflect heat back outside. 
  • Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone. 

Make sure you know the signs of heat-related illness and how to respond.

In effect from Sunday 07/26 11:14 AM PDT – Monday 07/27 8:00 PM PDT

Issued by NWS San Diego CA

What

Temperatures in the mid to upper 90s with low temperatures in the upper 60s to low 70s.

Where

San Diego County Mountains.

When

Until 8 PM PDT Monday.

Impacts

Hot temperatures may cause heat illnesses.

What to Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Areas Impacted

  • San Diego County Mountains

Tips to Stay Safe

A Heat Advisory means dangerous heat conditions are happening now or soon. Take action before, during and after the heat to stay safe. 

  • Stay in air-conditioned spaces if possible. Find cooling centers or places with AC in your community that you can go to, like libraries or shopping malls. 
  • Stay hydrated and stock up on clean drinking water to get you through multiple days of heat.
  • Reschedule outdoor activities for cooler times of the day, and take breaks in the shade or air conditioning.
  • Cover windows with curtains or shades, or use window reflectors designed to reflect heat back outside. 
  • Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone. 

Make sure you know the signs of heat-related illness and how to respond.

In effect from Sunday 07/26 11:14 AM PDT – Monday 07/27 8:00 PM PDT

Issued by NWS San Diego CA

What

High temperatures in the upper 80s to upper 90s and low temperatures in the upper 60s to low 70s.

Where

San Diego County Valleys.

When

Until 8 PM PDT Monday.

Impacts

Hot temperatures may cause heat illnesses.

What to Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Areas Impacted

  • San Diego County Inland Valleys

Tips to Stay Safe

A Heat Advisory means dangerous heat conditions are happening now or soon. Take action before, during and after the heat to stay safe. 

  • Stay in air-conditioned spaces if possible. Find cooling centers or places with AC in your community that you can go to, like libraries or shopping malls. 
  • Stay hydrated and stock up on clean drinking water to get you through multiple days of heat.
  • Reschedule outdoor activities for cooler times of the day, and take breaks in the shade or air conditioning.
  • Cover windows with curtains or shades, or use window reflectors designed to reflect heat back outside. 
  • Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone. 

Make sure you know the signs of heat-related illness and how to respond.

In effect from Sunday 07/26 11:14 AM PDT – Monday 07/27 8:00 PM PDT

Issued by NWS San Diego CA

What

High temperatures in the low to mid 90s and low temperatures in the 70s.

Where

Santa Ana Mountains and Foothills.

When

Until 8 PM PDT Monday.

Impacts

Hot temperatures may cause heat illnesses.

What to Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Areas Impacted

  • Santa Ana Mountains and Foothills

Tips to Stay Safe

A Heat Advisory means dangerous heat conditions are happening now or soon. Take action before, during and after the heat to stay safe. 

  • Stay in air-conditioned spaces if possible. Find cooling centers or places with AC in your community that you can go to, like libraries or shopping malls. 
  • Stay hydrated and stock up on clean drinking water to get you through multiple days of heat.
  • Reschedule outdoor activities for cooler times of the day, and take breaks in the shade or air conditioning.
  • Cover windows with curtains or shades, or use window reflectors designed to reflect heat back outside. 
  • Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone. 

Make sure you know the signs of heat-related illness and how to respond.

In effect from Sunday 07/26 1:33 PM PDT – Wednesday 07/29 6:00 PM PDT

Issued by NWS San Diego CA

What

Surf of 3 to 6 feet with sets to 7 feet expected. Highest surf will be on south-southwest facing beaches.

Where

San Diego County Coastal Areas and Orange County Coastal Areas.

When

Through Wednesday afternoon.

Impacts

Increased rip current risk, longshore current risk and dangerous swimming conditions. Minor coastal flooding is possible during evening high tides which are forecast to be 6.0 to 6.5 feet this evening though much of this week.

Additional Details

South-southwest swell of 2 to 3 feet from 200 degrees with a period of about 17 seconds.

What to Do

Remain out of the water to avoid hazardous swimming conditions.


Areas Impacted

  • San Diego County Coastal Areas
  • Orange County Coastal

Tips to Stay Safe

Your area may see dangerous swimming conditions. Use caution: 

  • Stay off of rocks and jetties due to dangerous conditions
  • Stay out of the water to avoid hazardous swimming conditions, and stay near occupied lifeguard towers 
  • Keep small children in sight and within arm’s reach at all times.

Briefings

No recent briefing available

From the Forecaster

Monday Highs

Created by the NWS San Diego WFO

Similar temperatures Tuesday, and Wednesday.

A map of forecasted high temperatures for Southern California for July 27th, 2026.

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

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No risk
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