Halloween Events in San Mateo

💡 Local Tips for Halloween in San Mateo

🎃 🎃 Book haunts on weeknights — Friday and Saturday crowds in San Mateo are intense; Sunday–Thursday means shorter lines and often cheaper tickets.
🎃 🎃 Check dates before you drive — most San Mateo Halloween events run select nights only; confirm the 2026 schedule on the event page first.
🎃 🎃 Layer up — October evenings in San Mateo cool off fast; a jacket over your costume beats shivering in line.
🎃 🎃 Plan parking early — popular San Mateo venues fill their lots by 8 PM on October weekends; rideshare or arrive early.

❓ San Mateo Halloween FAQ

What are the best Halloween events in San Mateo for 2026?
The top picks for 2026 include Boos and Brews on B Street, Peninsula Gymnastics Halloween Party & Haunted House, The Headless Horseman + Viva La Vida. Browse the full list above — every event includes dates, tickets, and directions.

When is trick-or-treat in San Mateo in 2026?
Halloween falls on Saturday, October 31, 2026, and most San Mateo neighborhoods trick-or-treat that evening, roughly 6–9 PM. Check your city's official page for any local guidance.

Where can I find San Mateo Halloween events near me?
Right here — this guide lists 3 verified Halloween events across San Mateo for the 2026 season, each with full details, updated as organizers announce schedules.