Bay Area Breaks 103-Year-Old Winter Record As Cold Front Lingers Across CA

SAN FRANCISCO, CA — The Bay Area just broke a 103-year-old temperature record after days of stubborn fog kept daytime highs well below normal.

On Sunday, San Francisco reached only 50 degrees, ousting the previous record cool high of 51 degrees for Nov. 30, set in 1922, according to the National Weather Service.

Forecasters said a gray, murky start to the week has given way to persistent "Tule" fog across the region, locking in chilly daytime temperatures.

“It’s called a Tule fog, but that’s just a local reference to the phenomena that sets up in general, usually in the early winter,” NWS Bay Area meteorologist Roger Gass told SFGATE.

After a wet October and November, he said the saturated lower atmosphere has been “trapping moisture in the lower levels, resulting in this fog.”

That fog has kept temperatures chilly, and it’s expected to persist through Monday before offshore winds arrive Tuesday to shake up the weather pattern.

Those winds are expected to strengthen late Tuesday into early Wednesday, with gusts of 30 to 45 mph possible in the North Bay, the Bay Area hills and the Santa Cruz Mountains.

Conditions are expected to quiet down after Wednesday as weak high pressure nudges into the region, bringing a gradual warming trend through the weekend. The Climate Prediction Center’s 8- to 14-day outlook shows temperatures leaning above normal with near- or slightly below-normal chances for precipitation.

🍃Gusty offshore winds expected Tuesday night through Wednesday across the higher elevations of the Bay Area. Gusts reaching 40 mph expected in the mountains of the interior North Bay, East Bay, and Santa Cruz Mountains. Secure loose outdoor objects! #CAwx pic.twitter.com/mrwgL5DjIP
— NWS Bay Area 🌉 (@NWSBayArea) December 2, 2025

Hazardous beach conditions will also persist through Wednesday evening, with the potential for sneaker waves and strong rip currents from Sonoma to Monterey counties. King Tides are forecast to arrive Dec. 2 through 7.

Here's what the daytime forecast looks like Wednesday across the Bay Area, according to the NWS:

San Francisco: Sunny, with a high near 62. North northeast wind around 10 mph, with gusts as high as 20 mph.

Walnut Creek: Mostly sunny, with a high near 63. North northeast wind 8 to 13 mph, with gusts as high as 23 mph.

Pleasanton: Mostly sunny, with a high near 60. North northeast wind 5 to 10 mph, with gusts as high as 18 mph.

Novato: Mostly sunny, with a high near 66. Light and variable wind becoming north northeast 5 to 9 mph in the morning.

Fremont: Mostly sunny, with a high near 62. Northeast wind 5 to 9 mph.

San Mateo: Mostly sunny, with a high near 63. East wind 6 to 10 mph becoming north northeast in the afternoon.

Petaluma: Mostly sunny, with a high near 65. West wind around 6 mph becoming north northeast in the afternoon.

Healdsburg: Mostly sunny, with a high near 65. North northwest wind 5 to 7 mph becoming northeast in the morning.

Santa Cruz: Mostly sunny, with a high near 63. North wind 5 to 7 mph.