San Diego is starting Friday, September 18, under mostly cloudy skies around 70 degrees, but the gray is on borrowed time. Clouds should thin through the morning before a mostly sunny afternoon peaks near 74.
Sunny Afternoon By The Coast
The coastal forecast calls for a sunny afternoon. Friday night sees increasing clouds, while Saturday looks similar and slightly warmer, with coastal temperatures generally in the 70s.
Marine Layer Eases Into Weekend
The National Weather Service says the marine layer should become shallower over the weekend, meaning coastal clouds should not push as far into the valleys during overnight and morning hours. Sunday temperatures will be one or two degrees cooler along the coast and in the valleys, followed by additional cooling Monday, with coastal highs in the lower to mid-70s.
Warmup Arrives Next Week
Temperatures begin climbing Tuesday, with Wednesday returning to around average and Thursday in the mid to upper 70s. Rain chances remain at or near zero through the outlook, and no watches, warnings or advisories are posted for the area.
The latest forecast keeps the broader pattern intact. For beach walks, patios and errands, Friday offers the familiar San Diego split shift: cloudier start, sunnier finish.
