Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 8 at 7:01AM PDT until September 9

Affecting San Diego County Coastal Areas; Orange County Coastal

In effect until: Sep 8, 2026, 10:15 PM

San Diego County Coastal Areas; Orange County Coastal

Likely impact; effects through 10:15 PM.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

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* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with high temperatures in the mid 80s at the beaches to 90s for
higher coastal terrain with low temperatures in the lower to mid
70s. For the Heat Advisory, high temperatures around 80 near the
coast to the lower to mid 90s for higher coastal terrain.

* WHERE...Orange County Coastal Areas and San Diego County Coastal
Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Extreme Heat Warning issued September 8 at 7:01AM PDT until September 9

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