San Francisco woke up today to a cool, mostly cloudy start, with temperatures hovering near 53°F and a bit of muggy air lingering. The marine layer is expected to thin inland by late morning, opening the door to mostly sunny skies and highs in the mid-60s for most neighborhoods. Keep a light jacket handy near the water, since the west breeze will make the shoreline feel noticeably cooler than inland areas.
Afternoon Winds Kick In
West winds will ramp up this afternoon to 5 to 13 mph, with gusts up to 20 mph in exposed areas and on hilltops. The stronger gusts may make bridge crossings and open-road stretches feel blustery during the evening commute, so expect some hair-flapping on bike rides and lighter layers snapping around on patios.
Coast And Bay: Foggy Mornings, Choppy Seas
Low clouds and pockets of fog will linger near the shoreline this morning before thinning inland. Out on the water, northwest winds will pick up tonight and keep seas choppy through the weekend. Small Craft Advisories are in effect for stretches of the coast, including from 9 PM today through 3 PM Saturday for waters from Point Arena to Point Reyes (0 to 10 nm), along with overlapping advisories for Pigeon Point to Point Pinos and the outer waters during the same window. Mariners and ferry riders should plan for building seas and gusty offshore winds.
Weekend Warmth Peaks Monday
A ridge of high pressure will nudge temperatures higher through the weekend, with inland valleys climbing into the 80s and some interior Monterey County spots possibly pushing into the 90s. The National Weather Service is flagging a moderate heat risk for sensitive populations beginning Saturday, and expects the warmest day to be next Monday, when many inland locations could near or top 80°F. If you are planning outdoor activities, take breaks in the shade, stay hydrated, and consider shifting more strenuous tasks to the morning or evening.
Plan And Precautions
Boaters and operators of small craft should consider delaying nonessential trips while advisories are in effect, as conditions will be rougher and less forgiving. Ferry schedules may run into some bumps or feel extra choppy. For everyone on land, layer up for a foggy morning, then pack sunscreen for an afternoon that will feel noticeably warmer once you get away from the water.
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