San Diego/ Weather & Environment

San Diego Settles Into Sunny 70s Lull After Late-Summer Sizzle

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Published on September 14, 2026
San Diego Settles Into Sunny 70s Lull After Late-Summer SizzleSan Diego Skyline Viewpoint — Weather Coverage Backdrop
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San Diego starts Monday under cloudy skies and temperatures around 72 degrees, but the gray opening is expected to give way to a mostly sunny afternoon. The high should reach about 78 degrees, with no rain in the forecast and light south winds.

According to the National Weather Service, the city is entering a brief cooling stretch before temperatures begin edging upward later in the week. The latest outlook follows Hoodline’s recent forecast covering the region’s shift away from hotter conditions.

Cloudier Mornings Return Tuesday And Wednesday

Low clouds are expected to redevelop overnight. Coastal clouds are expected to become more widespread Tuesday and Wednesday mornings, possibly reaching farther into western valleys before clearing later in the day.

Tuesday and Wednesday should see daytime clearing, with Wednesday coastal highs in the 70s. Conditions should remain comfortable for errands, outdoor plans and the daily commute.

Sunny Stretch Builds Into The Weekend

Thursday marks the start of a gradual warm-up, with sunny skies and a high near 78 degrees. Friday should continue the warm-up, while Saturday brings coastal highs in the 70s.

Weekend overnight lows are not specified. No hazardous marine conditions, watches, warnings or advisories are expected for the San Diego area through Friday, according to the current forecast.