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National Weather Service Issues Extreme Heat Watch and Heat Advisory for Southern California Coastal Areas

August 22, 2026 · wweather1 editorial · 2 min read

The National Weather Service in Los Angeles/Oxnard has issued a Heat Advisory and an Extreme Heat Watch for multiple coastal and island areas in Southern California, with temperatures expected to reach up to 100 degrees.

The National Weather Service office in Los Angeles/Oxnard, California, issued the weather alert on August 22 at 2:25 PM PDT. The notification includes both a Heat Advisory and an Extreme Heat Watch covering coastal zones and islands in the region.

The Heat Advisory is in effect from 10 AM Sunday to 10 AM PDT Tuesday, bringing expected temperatures up to 94 degrees. It will be followed by an Extreme Heat Watch from Tuesday morning through Friday, August 28 at 8:00 PM PDT, when dangerously hot conditions with temperatures up to 100 degrees are possible.

The impacted areas comprise Catalina and Santa Barbara Islands, Los Angeles County Beaches, Malibu Coast, Palos Verdes Hills, Los Angeles County Inland Coast including Downtown Los Angeles, Santa Barbara County Southeastern Coast, Santa Barbara County Southwestern Coast, Ventura County Beaches, and Ventura County Inland Coast.

According to weather officials, hot temperatures can cause heat illnesses, and the risk of heat-related illnesses increases significantly during extreme heat events.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids.
• Stay in an air-conditioned room and stay out of the sun.
• Check up on relatives and neighbors.
📊 The numbers, from wweather1 data
Los Angeles: now +28°, Clear.
That is 2° above the August climate norm.
The record for this date is +41° (1972).
Three-day forecast: 23 August: +36°/+19° · 24 August: +36°/+19° · 25 August: +36°/+26°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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