Halloween Events in San Marcos

💡 Local Tips for Halloween in San Marcos

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

❓ San Marcos Halloween FAQ

What are the best Halloween events in San Marcos for 2026?
The top picks for 2026 include San Marcos Community Harvest Festival and Halloween Trunk or Treat (Twin Oaks Valley), San Marcos Harvest Fest (Chamber of Commerce). Browse the full list above — every event includes dates, tickets, and directions.

When is trick-or-treat in San Marcos in 2026?
Halloween falls on Saturday, October 31, 2026, and most San Marcos 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 Marcos Halloween events near me?
Right here — this guide lists 2 verified Halloween events across San Marcos for the 2026 season, each with full details, updated as organizers announce schedules.