Monday marks the first official day of fall, as the autumnal equinox brings nearly equal hours of daylight and darkness. In the Bay Area, the shift is more symbolic than seasonal, temperatures are still expected to hover in the 80s this week, but residents can look forward to cooler mornings, earlier sunsets, and the return of fall traditions like pumpkin patches and harvest festivals.

Astronomers note that the equinox occurred at 5:19 a.m. Pacific time, signaling the exact moment when the sun crossed the celestial equator. From here, the days will slowly grow shorter until the winter solstice in December. Whether you’re pulling out sweaters or still reaching for sunglasses, today is a reminder that summer is officially in the rearview.

The post The First Day of Fall Is Here, Even If It

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