Today, San Jose woke to a cool, cloudy start, with temperatures hovering around 59°F at Mineta San José International Airport. Inland neighborhoods are still on track to warm into the mid-70s this afternoon, while the coast hangs back noticeably cooler. The real story, though, is the onshore breeze that will ramp up later today and take center stage through the weekend.
Afternoon Winds Pick Up
This afternoon, west-southwest winds are expected to increase, generally running 2–12 mph with occasional gusts up to about 18 mph that could make bike and pedestrian commutes feel pretty blustery. According to the National Weather Service, those winds are forecast to strengthen through tonight and until tomorrow, with gusts becoming more frequent in exposed spots.
Friday Into Saturday: Cooler, Gustier
An upper-level trough will deepen over the region tomorrow, bringing a cooler air mass that should keep highs near 75°F tomorrow, and around 71°F on Saturday, with overnight lows holding in the mid-50s. Along the coast, spotty drizzle or light marine spray is possible, but forecasters are not expecting much in the way of measurable accumulation. Gusts are forecast to peak from tomorrow into Saturday, with mountain passes and wind-prone gaps seeing the strongest punch, potentially 40–60 mph in the windiest corridors.
Coastal Boaters and Commuters
Boaters are urged to stay away from exposed waters while Small Craft Advisories are in effect, and beachgoers are advised to avoid west-facing shores where sneaker waves and strong rip currents are possible. Cyclists and drivers should also keep an eye out for gusty crosswinds on bridges and other open stretches through tomorrow and into the weekend.
Temperatures should start to climb next Sunday again, as the trough moves away, so this cool, breezy pattern looks short-lived. Before heading out for a boating trip or a long drive, check the latest forecast and secure any loose outdoor items ahead of those afternoon gusts.
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