A person walks with an umbrella near the Golden Gate Bridge during heavy rain as an atmospheric river hits the San Francisco Bay Area on Nov. 13, 2025.

LATEST Dec. 18, 2:50 p.m.: New data from the National Weather Service shows back-to-back major storms could drop a month’s worth of rain in San Francisco over a few days. Dial Hoang, a meteorologist at the weather service, said preliminary estimates show multiple weather systems coming through the Bay Area in the next few days, including a system arriving on Tuesday, that could drop around 3 to 4 inches of rain over Christmas Eve and Christmas.

When combined with two earlier storm systems, San Francisco could see over 7 inches of rain in the next week, well over December's monthly average rainfall of 4.76 inches, Hoang said.

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“We're going to see a lot of impacts with regards to local flooding and especially roadways, streams and creeks,”........

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