San Diego

May Gray Fades As Sunny Afternoons Stage San Diego Comeback

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Published on May 18, 2026
May Gray Fades As Sunny Afternoons Stage San Diego ComebackSource: Amantonacci, CC BY-SA 4.0, via Wikimedia Commons

Monday morning in San Diego started under a blanket of low clouds and cool air, with San Diego International (KSAN) sitting at roughly 63°F before sunrise. As the marine layer thins inland by mid-morning, skies should turn partly sunny and temps will climb toward a high near 69°F this afternoon. Southwest breezes of 5 to 10 mph are expected, with gusts up to 20 mph at exposed coastal spots and mountain passes.

Afternoon Winds Pick Up

Southwest winds are expected to strengthen through the afternoon, leaving the coast feeling breezier than inland neighborhoods and kicking up the surf on west-facing beaches. Inland valleys and neighborhoods should clear out the fastest and warm into the upper 60s to low 70s, while the higher passes hang on to those stronger gusts. According to the National Weather Service, forecast highs around 69°F and southwest gusts up to 20 mph are on tap today.

Surf And Beach Conditions

A Beach Hazards Statement this morning flagged 2 to 4 foot surf with sets to 5 feet and a risk of minor tidal overflow at high tide, making west- and northwest-facing beaches the trickiest spots for swimmers. Lifeguards are urging people to stay off jetties and to move vehicles out of low-lying beach lots during high tide cycles. For more background on the weekend swell and local advisories, see wild winds and 7-foot surf.

Foggy Mornings, Sunny Afternoons

The pattern looks pretty locked in over the next few days. Coastal areas may wake up to clouds each morning, then clear into mostly sunny afternoons, with a few degrees of warming Tuesday and Wednesday and highs around 72°F. The marine layer should redevelop overnight through midweek, which means cooler, gray mornings followed by clearer afternoons across much of the metro.

If you are heading to the shore, check lifeguard flags and steer clear of rough water. Small craft should use caution in choppy seas, and drivers of high-profile vehicles should allow extra time and be ready for gusts on mountain passes and coastal routes.