Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued October 1 at 1:12PM PDT until October 8

Affecting San Diego County Coastal Areas

In effect until: Oct 2, 2026, 4:15 AM

San Diego County Coastal Areas

Likely impact; effects through 4:15 AM.

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...Dangerously hot conditions with high temperatures ranging
from the mid 80s to lower 90s near the coast to the mid 90s to
around 100 for the mesas and other higher coastal terrain expected.
Nights will be very warm with low temperatures mostly in the lower
to mid 70s.

* WHERE...San Diego County Coastal Areas.

* WHEN...From 10 AM Friday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

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

Extreme Heat Warning issued October 1 at 1:12PM PDT until October 8

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