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9 family Halloween events near San Francisco Bay Area with 2026 dates confirmed on their official sites, across 8 towns. The earliest to open is Tricks and Treats, on September 19. 2 list free admission.
Just-spooky-enough Halloween festival that takes over a children's museum near the Golden Gate Bridge: giant spiderwebs, potion brewing, creature building and a toddler harvest room.
Seaside amusement park turns Halloween day into a trick-or-treat route between rides and arcades, with a candy bag package and a photo costume contest.
Family theme park's Halloween season with a trick-or-treat trail through the gardens, costumed characters, light displays and kid-friendly rides.
Daytime, no-fear Halloween at the animal and thrill park: costume contest, a Looney Tunes dance party, mask making and seasonal treats alongside the regular rides.
Long-running community Day of the Dead celebration filling the museum's gardens with altars, music, dance and family art activities.
Coastal town's big pumpkin weekend: giant record-sized pumpkins from the weigh-off, a pumpkin parade, costume contest, carving demos, art booths and live music along Main Street.
City-run harvest fair at Dublin's historic heritage park and museums.
Free outdoor Day of the Dead street festival in the Fruitvale district with community altars, live music, Latin American artisans and family games and rides.
Short city-run pumpkin morning in a Milpitas neighborhood park.
Día de los Muertos at OMCA, Goblin Jamboree, Half Moon Bay Art & Pumpkin Festival, Halloween at the Boardwalk, Harvest Fair, Oakland Día de los Muertos Festival, and 3 more. Each has its 2026 dates, hours and prices on its own page.
The earliest in this guide is Tricks and Treats on September 19, 2026.
Día de los Muertos at OMCA, Half Moon Bay Art & Pumpkin Festival, Halloween at the Boardwalk, Harvest Fair, Oakland Día de los Muertos Festival, Pumpkins in the Park, and 1 more are rated 1 of 5 ghosts: not scary.
Yes: Half Moon Bay Art & Pumpkin Festival and Oakland Día de los Muertos Festival list free admission on the official site.
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