San Luis Obispo County Halloween 2026: 6 Family Events from Paso Robles to Grover Beach

For Halloween 2026 on California’s Central Coast, families can choose between downtown trick-or-treating, a two-day carnival, a community trunk-or-treat and Día de los Muertos festivities. These listings are based on 2026 organizer or community-calendar announcements, with clear distinctions between free and paid activities.

Editor’s note: Date-specific guide for October 2026. Information is subject to change. Check organizer pages for the latest updates and age restrictions.

Best Halloween 2026 family events in San Luis Obispo County

1. Halloween at Downtown SLO Farmers’ Market

Where: Higuera Street and Mission Plaza, San Luis Obispo
Date: October 29, 2026
Time: Trick-or-Treat Trail 6–8 p.m.; market 6–9 p.m.

Downtown businesses hand out candy and Mission Plaza hosts a costume contest. Participation is free; bring a candy bag and check the official trail map. Check official or local event details.

2. Two-Day Halloween Carnival

Where: Elm Street Park, 1221 Ash Street, Arroyo Grande
Date: October 24–25, 2026
Time: 1–7 p.m. both days

Pumpkin patch, games, costume contests and a free trick-or-treat trail. Activities such as bounce attractions and LED mini golf may require paid tickets. Check official or local event details.

3. Grover Beach Trunk or Treat

Where: 16th Street Park, Grover Beach
Date: October 30, 2026
Time: 5 p.m. until dark

Free family candy walk between creatively decorated vehicles, with games and seasonal activities; hosted by the city and local Rotary Club. Check official or local event details.

4. Safe & Fun Halloween

Where: Downtown Paso Robles
Date: October 31, 2026
Time: 4–7 p.m.

Downtown merchants welcome costumed trick-or-treaters. Check the merchant association for route and participating businesses. Check official or local event details.

5. Mission Plaza Día de los Muertos

Where: Mission Plaza, San Luis Obispo
Date: October 31, 2026
Time: 11 a.m.–3 p.m.

A separate Mexican remembrance tradition, with cultural performances and altars. It is not a Halloween trick-or-treating substitute. Check official or local event details.

6. Wiggle Waggle Fall Festival

Where: Woods Humane Society, San Luis Obispo
Date: October 24, 2026
Time: Noon–3 p.m.

A pet-friendly fall community outing with a Halloween mood. Keep animal welfare in mind when choosing costumes. Check official or local event details.

How to plan your family outing

Families staying in San Luis Obispo can begin with the October 29 Downtown SLO event, then drive south to Grover Beach on October 30. The Arroyo Grande carnival runs on the preceding weekend. Paso Robles is to the north, and the October 31 event makes a separate outing. Watch for traffic and bring layers for Central Coast evenings.

Before you go: tickets, weather and safety

Confirm start time, ticket availability, accessibility and any event cancellation. For younger children, favor daylight activities over haunted houses; for evening outings, bring warm clothing and use marked crosswalks. Costs may vary between free admission and paid optional attractions.

Plan a route: Explore the region and organize your family trip with OptionTrip.

Explore more: California Halloween 2026 by county.

Sources and updates

California58 | Reviewed October 11, 2026. Events listed here are independent editorial selections; OptionTrip is a related travel-planning service.

Explore San Luis Obispo County beyond Halloween

Explore beyond Halloween: read our San Luis Obispo County year-round travel guide for attractions, outdoor places and planning ideas.

For county-specific communities, public services and local knowledge, visit the San Luis Obispo County reference profile. You can also browse all California58 travel guides. Halloween 2026 events are seasonal and may change; check each organizer’s current calendar before traveling.