San Diego

San Diego Braces for Sticky Coastal Sizzle as Heat Advisory Lingers

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Published on July 24, 2026
San Diego Braces for Sticky Coastal Sizzle as Heat Advisory LingersSource: Scott Cameron, CC BY 3.0, via Wikimedia Commons

San Diego woke up to low clouds, muggy air and that familiar summer sticky today, with temperatures in the low 70s at San Diego International Airport and inland neighborhoods already climbing toward the low 80s. Expect those gray mornings to give way to mostly sunny afternoons, followed by warm nights that linger in the upper 60s to low 70s. Local beaches should be busier than usual as larger surf rolls in and rip current risks climb.

What To Expect

Highs are forecast to top out near 81°F on Friday and about 82°F tomorrow, with a slight cooldown next Sunday as a bit of monsoonal moisture drifts in. Overnight lows will stay on the sticky side, generally around 69–70°F, so there will not be much relief after dark.

A Heat Advisory remains in effect for San Diego County coastal areas through 8:00 PM next Monday. The National Weather Service is calling for mid-80s to lower-90s on nearby mesas and other elevated coastal terrain. Surf, tides and rip currents are also expected to run higher than usual through the weekend, according to the National Weather Service San Diego.

Afternoons And Mornings

The marine layer is projected to sit around 1,200–1,500 feet, which means low clouds and fog in the pre-dawn and early morning hours, then clearing into bright, warm afternoons. Afternoon winds should stay light, generally 0–10 mph from the southwest, so the heat will feel more like a combo of sun and humidity than anything driven by gusty breezes.

If you are planning to be outside, aim for the later part of the day when the marine layer has burned back and you can better gauge just how warm it feels.

How To Stay Safe

Hydrate early and often, skip strenuous outdoor work during the hottest midday hours if you can, and check in on neighbors who may not have air conditioning. At the coast, think twice before heading into the water while the Beach Hazards Statement is in effect, because strong rip currents and higher evening tides could make swimming dangerous and may push water into low-lying beach areas.