San Franciscans woke up today to a classic city combo: cool, mostly cloudy skies near the water and low-50s temperatures across the neighborhoods. A steady onshore breeze will build through the day, nudging afternoon highs toward about 67°F around the city while keeping the Pacific shoreline several notches cooler. Waterfront plans call for layers, while inland spots can expect some breaks of sun.
Afternoon Gusts And Coastal Drizzle
West winds are set to ramp up today, generally running 6 to 16 mph with gusts in the 20s and 30s along exposed headlands and through gap passes. Favored wind funnels like the Salinas Valley and Altamont Pass could see even stronger bursts. A weak front will drag in a slight chance of light coastal drizzle this evening into early tomorrow with only trace amounts to a few tenths of an inch in the luckiest spots. Boaters and anyone heading out on the water should note Small Craft Advisories and a localized Gale Warning for portions of the outer waters, along with choppy seas expected through tonight, according to the National Weather Service.
Midweek Warm-Up And Fire Concerns
A strong ridge is forecast to build by Wednesday and Thursday, kicking off a notable warm-up across interior areas with highs rising into the middle 80s and 90s, and a few isolated spots flirting with triple digits. Forecasters are flagging a moderate risk of heat-related illness for inland communities, along with heightened fire-weather concerns in the interior North Bay mountains late Wednesday into Thursday as gusty winds line up with low humidity. Residents in the hotter, drier microclimates should be ready for toasty afternoons and weaker overnight humidity recovery.
How To Prepare
Anyone sensitive to heat should shift strenuous outdoor plans to morning or evening and keep water handy. San Francisco posts cooling-center locations, public pools, and other heat resources on the city website and the ReadySF map. Cyclists, high-profile vehicles, and ferry riders should also brace for gusty crosswinds and choppy conditions during peak-wind hours. Check local alerts and operating hours for cooling centers before heading out via SF.gov.
Earlier Coverage And Where To Watch
We have been following this cool-shore, warm-inland split all weekend, including earlier coverage of sneaker-wave issues and headland gust concerns. For the latest forecast updates, marine products, and any fire-weather watches that might be issued, keep an eye on the National Weather Service and official city resources.
