San Francisco is starting Friday near 61 degrees, with mostly sunny skies and a high around 70. A cool front is bringing a noticeable change from the warmer pattern earlier this week, with an onshore push and breezes building through the afternoon. Rain is essentially off the table, but gusts could reach 23 mph.
Morning Clouds Give Way To Afternoon Wind
Low clouds may linger around the coast and Bay early Friday before thinning out, leaving a brighter afternoon across the city. The National Weather Service expects winds of 6 to 15 mph, with the strongest breezes arriving later in the day.
Clouds are expected Friday night. Saturday should be cooler, with coastal temperatures in the 60s to around 70, while Sunday looks more like a classic brisk San Francisco day with a high around 63.
Cooler Weekend Brings Breezy Outdoor Conditions
Fresh to strong northerly breezes are expected into the weekend, with near-gale gusts possible in parts of the Monterey Bay and Big Sur waters Sunday. Anyone heading onto the water should check conditions first, as Small Craft Advisories are posted for several nearby coastal zones through the weekend.
For city plans, the practical takeaway is layers: afternoons should be comfortable in the sun, but exposed streets, waterfront paths and evening gatherings may feel distinctly chilly. The marine layer and stronger breeze will do their best to remind everyone that September in San Francisco has never been especially interested in following a schedule.
Sunny Warmup Returns Next Week
Cooler weather is expected to last through Monday, with a warming trend beginning Tuesday and continuing through Thursday.
The warming trend is expected to continue through Thursday, and the forecast stays dry through the week, making the main weather story a brief weekend cooldown followed by a steady return to near-seasonal warmth.
