SONOMA COUNTY, California — Friday, October 30, 2026. Saturday’s options across Sonoma County range from a classic trick-or-treat route around the historic Sonoma Plaza to a Día de Muertos cultural gathering in Windsor. These events have different meanings and activities: Día de Muertos is a remembrance tradition, not simply another name for Halloween.
Where to celebrate on Saturday, October 31
Sonoma Spooktacular around the Plaza
When: Saturday, Oct. 31, 3–5 p.m.. Where: Historic Sonoma Plaza; collect the route map at the Sonoma Valley Visitors Center.
Free business-to-business trick-or-treating primarily designed for children 10 and younger. Check the original organizer listing.
Windsor Día de Muertos festival
When: Saturday, Oct. 31, 3–7 p.m.. Where: Windsor Town Green.
Free music and dancing, Indigenous dancers’ blessing, a memorial procession, folklórico and mariachi, plus food and craft vendors. Check the original organizer listing.
Petaluma downtown trick-or-treat trail
When: Saturday, Oct. 31, 3–5:30 p.m.. Where: Downtown Petaluma participating merchants.
Community merchants plan a family trick-or-treat trail; look for the posted map and businesses participating. Check the original organizer listing.
A practical Saturday itinerary
Sonoma and Windsor have simultaneous afternoon start times, so choose one primary event rather than risk spending the afternoon in traffic. Petaluma’s trail is another standalone alternative. Families should distinguish the children’s trick-or-treat experience from Windsor’s remembrance and music, which call for respectful participation.
Another local consideration
On Sunday, November 1, community organizations elsewhere in the county hold additional Día de Muertos remembrance events. Confirm times and any access limits with the organizer instead of treating a generic weekend listing as a guaranteed program. Verify details here.
Before you leave
Schedules may change because of weather, staffing, capacity or other restrictions. Check the linked organizer’s current announcement, admission policies and any street closures before traveling. Children should carry emergency contact details; families should remain together in crowds and use marked crossings. A listed Día de Muertos observance is a remembrance tradition with its own cultural meaning, not simply another Halloween costume party.
California58 county coverage: Read more local reporting and the Sonoma County newspaper directory. Send corrections with a dated organizer notice to california58com@gmail.com.
Last researched October 30, 2026. Venue schedules linked directly to their organizers or public tourism agencies. Events on October 30 are specifically marked and should not be mistaken for October 31 events.
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