Breaking News
More () »

Extended heat wave to bring triple digits to San Diego County | Here’s why it is getting so hot

San Diego County is preparing for a prolonged heat wave lasting through the Labor Day holiday.

SAN DIEGO — A brutal heat wave is coming to Southern California with temperatures expected to push into triple-digits this weekend with the hot temperatures continuing through the Labor Day weekend.

Temperatures are expected to spike and stay that way through next weekend, according to the National Weather Service.

"High pressure will produce a prolonged warming trend with only a minimal marine layer," according to the NWS. "By mid week very hot conditions will develop with triple-digit heat for many valley and mountain locations through the Labor Day weekend. This heat may be record breaking and will likely produce a very high heat illness risk."

Why is it getting so hot?

Unlike last week's heat that brought in a lot of monsoon moisture with the high-pressure located over eastern Texas, this high-pressure is much further west and because the high-pressure is further west we will feel a much stronger influence with compressional heating of the atmosphere. Also because there’s not as much moisture in the atmosphere, it will heat much quicker then if there was monsoon moisture was in it. This will elevate fire danger risks across the county because fuel moisture content will be much lower. This is a very dangerous situation starting Tuesday so watch over children, animals, and the elderly.

Heat advisories

Excessive Heat Warning for San Diego County:
August 30 at 10:00 a.m. - September 5 at 8:00 p.m.

August 30 at 10:00 a.m. - September 5 at 8:00 p.m. 

Inland valleys
August 30 at 10:00 a.m. - September 5 at 8:00 p.m. 

Coast areas
August 30 at 10:00 a.m. - September 5 at 8:00 p.m.

San Diego County Cool Zones

Cool Zones bring relief from the heat with free, air-conditioned settings across San Diego County. These areas include libraries or community centers. While the San Diego County Board of Supervisors launched the Cool Zone program out of concern for seniors, persons with disabilities, and those with health concerns that could be complicated by the effects of heat, anyone that wants to escape the extreme heat. Click here for more information.

Ways to stay safe in the heat

The following information is from San Diego County:

  • Stay hydrated with water. Avoid sugary beverages
  • Check on friends and neighbors at high risk for heat-related illness
  • Stay cool in an air conditioned area
  • NEVER leave kids or pets in a closed, parked vehicle
  • If you go outside, remember: wear a hat; wear lightweight, light-colored, loose-fitting clothing; use sunscreen (SPF 15 or higher); and bring water
  • Limit time outdoors. Take breaks often

RELATED: 4 Fast Facts about dogs in hot weather

RELATED: Yes, heat is historically the top weather-related killer in the US

Watch Related: Feeling a 'heat hangover'? Doctors say tiredness is common in these conditions (Aug 15, 2022)

Before You Leave, Check This Out