Summer Is Over, but the Bay Area’s Heat Is Just Getting Started

Summer isn’t over yet — not if the Bay Area weather forecast has anything to say about it.

Beginning Tuesday, temperatures in the region are expected to surpass seasonal averages, hitting the mid-80s and 90s inland and the 70s in San Francisco and Oakland. 

Those highs are likely to last, according to National Weather Service meteorologist Dial Hoang, who said that as of now, there’s no end in sight. 

“It does look like we will see temperatures above the seasonal averages into the middle of October,” he said. 

According to Hoang, San Francisco could see its first stretch of 10 consecutive 70-degree days in October since 2015 — when the sunny weather lasted for 12 days. 

As usual, it will get warmer further north and south from San Francisco and Oakland, with forecasts in the low 90s in San Jose and high 80s in Novato through Monday. 

Hoang said longer-term, temperatures could soar even higher, possibly reaching triple digits, depending on whether the incoming high-pressure system strengthens by mid-next week.

Hotter parts of San Francisco, like the Mission District, could reach the low 80s by mid-October, but the majority of the city will most likely remain in the 70s. The Pacific Coast will stay fairly cool, with highs in the 60s and low 70s. 

The warm-up comes just in time for San Francisco’s premier fall festivities — this weekend’s Hardly Strictly Bluegrass Festival at Golden Gate Park and Fleet Week, which will return in full force on Oct. 4, after a government shutdown last fall grounded the Blue Angels.

Hoang said that during this stretch, people should be sure to seek out shade and drink plenty of water, especially if they are prone to heat sensitivity. Fire risk will also be heightened, though meteorologists don’t anticipate any high winds, which could otherwise exacerbate fire spread.