San Diego/ Weather & Environment

Gloom to Glow: San Diego Shakes Off Morning Clouds for Sunny 75-Degree Afternoon

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Published on September 16, 2026
Gloom to Glow: San Diego Shakes Off Morning Clouds for Sunny 75-Degree AfternoonSource: Google Street View

San Diego is starting Wednesday, September 16, under mostly cloudy skies, with daytime coastal temperatures in the lower to mid 70s and a mostly sunny afternoon expected to reach about 75. The forecast stays dry and mild, although coastal clouds and the marine layer will linger into the morning.

Clouds Clear For A Mild Afternoon

The National Weather Service expects Wednesday’s clouds to thin through the morning, according to the National Weather Service. Thursday looks much the same, with mostly sunny skies and a high near 75 after another round of overnight and morning cloud cover.

Sunny Stretch Builds Into The Weekend

Friday brings a few degrees of warming, with morning low clouds not expected to spread inland past the far western valleys. Saturday should see continued warming, with coastal temperatures in the 70s, followed by cooling Sunday and Monday before temperatures warm Tuesday.

Marine Layer Eases By The Weekend

The marine layer is expected to remain deep enough through Thursday to push low clouds into much of the coastal basin and nearby valleys overnight and early in the day. It should become shallower Friday into the weekend, keeping most of the cloud cover closer to the coast and far western valleys. No watches, warnings or advisories are in effect for the San Diego area.