Halloween on Oʻahu falls on Saturday, October 31, in 2026. As of September 4, several firm plans have emerged. The rest still needs a calendar check.

Three useful anchors are posted: Aloun Farms has two pumpkin-patch weekends, Waimanalo Country Farms has announced its Fall Harvest Festival, and Hawaii Theatre lists a Halloween-night concert. Honolulu Haunts offers tours year-round. Royal Hawaiian Center has October programming but no event specifically billed for Halloween, while the Honolulu Zoo's Hallow-ZOO page still reflects 2025. Build around what is posted, then leave the rest flexible.

• Confirmed: Aloun Farms' 24th Annual Pumpkin Patch has two October weekends at its Kunia country market.
• Confirmed: Waimanalo Country Farms has posted its 2026 Fall Harvest Festival.
• Confirmed: Hawaii Theatre's calendar lists WHO’S BAD – THRILLER NIGHTS on October 31.
• Available now: Honolulu Haunts sells downtown historic-district tours.
• Watchlist: The Royal Hawaiian Center events calendar lists an October 4 event and recurring Hula Kahiko through October 31, but no event specifically presented as Halloween.
• Watchlist: The Honolulu Zoo's HallowZOO page still shows its 2025 event. Past pages put its keiki treat programming in late October, but that is not a 2026 date.

That last category matters. An old Instagram post or a prior-year event page is not a 2026 schedule. If an attraction has not posted this year's date, treat it as an option, not a promise.

I’d base in Waikīkī if your October 31 plans are in Honolulu. You can keep Kalākaua Avenue and hotel calendars close, then use a local ride for Hawaii Theatre or downtown rather than build the night around a late cross-island trip.

If your plan depends on a Kalākaua Avenue traffic closure, wait for official confirmation. Check the City and County of Honolulu events calendar and current road notices again in mid-October. Build a plan that still works with regular vehicle access and crowded sidewalks.

If you stay in Waikīkī, make walking the default. If you stay elsewhere, check the current TheBus routes and timetables against your hotel before October 31. A transportation plan beats guessing whether rideshare prices will rise.

The official Hawaii Theatre calendar places WHO’S BAD – THRILLER NIGHTS on October 31. The Michael Jackson tribute concert is a confirmed ticketed option for Halloween night in Honolulu.

Treat this as a decision point: buy the show ticket if it is the centerpiece, then choose lodging that keeps the theater and Waikīkī within a simple transit or taxi plan. Recheck the event and ticket details before making another nonrefundable purchase around it.

For the broader month, our Oʻahu events in October guide tracks the film, food, paddling, and festival dates that can fill the rest of the trip.

Honolulu Haunts' current tour page lists a downtown ghost tour plus a separate history-and-legend itinerary. The Honolulu Ghost Tour is listed nightly at 8 p.m.; the Island of the Gods itinerary is a separate noon departure. Confirm the time and meeting point for the specific tour you book.

Read the operator's description carefully. A walking tour that mixes documented buildings with folklore is entertainment, not a substitute for a museum or a historian-led tour. If royal history pulls you in, visit ʻIolani Palace during its published daytime hours. In Chinatown, check the hours for the individual businesses, galleries, or attractions you want to visit.

Costumes deserve the same filter. Hawaiian deities, warriors, and cultural practices are not Halloween props. Let the night tour be entertainment, and give the places and traditions behind its stories basic respect.

Halloween-week inventory can change faster than a year-round schedule. Book directly with the operator once your lodging is fixed, and verify the meeting point in the confirmation email rather than relying on an older article or screenshot.

Aloun Farms has posted its 2026 dates: October 17–18 and October 24–25, from 8 a.m. to 5 p.m., at 94-488 Kunia Road, Waipahu, HI 96797. The farm lists self-pick pumpkins, sunflower photo areas, local produce, and vendors. As of early September it still has not published an admission price or reservation system, so do not assume either until it does.

Waimanalo Country Farms has confirmed its 2026 Fall Harvest Festival for September 26 through November 11. Daytime entry does not require reservations. Posted admission is $10 for kamaʻāina and military visitors with valid ID and $12 for general admission Monday through Thursday; Friday through Sunday, it is $12 and $15. Pumpkins are available beginning September 26 while supplies last.

Aloun and Waimanalo Country Farms sit outside the Waikīkī core, on opposite sides of the island. If a farm event is your family anchor, I’d rent a car rather than squeeze the day around transfers. Compare current rates through Discount Hawaii Car Rental, then check the farm's page again the week before you go for weather or crop updates. If resort trick-or-treating matters, ask your hotel directly; no resort program is part of this article's confirmed list.

1. Choose the Hawaii Theatre show, a farm visit, or a ghost tour as your anchor, then book only the confirmed item you actually care about.
2. Recheck the Honolulu Zoo, Royal Hawaiian Center, and your hotel calendar through September. A smaller family program or a zoo trick-or-treat date may post later.
3. Confirm City road notices, TheBus service, meeting points, weather policies, and any age restrictions by mid-October.
4. Keep one evening uncommitted during the trip. Small community events can post late, and a normal beach sunset may still beat a forced Halloween itinerary.

Save the confirmed pieces in My Trip and keep the pending items in your notes. The point is not to fill October 31 from breakfast to midnight. It is to keep one unverified event from steering the whole vacation.

Oʻahu has three posted anchors for fall and Halloween planning right now. Aloun Farms gives families two confirmed pumpkin-patch weekends, Waimanalo Country Farms has a Fall Harvest Festival running from late September into November, and Hawaii Theatre gives visitors a confirmed October 31 show. Honolulu Haunts offers a bookable evening without waiting for a special event.

Royal Hawaiian Center and the Honolulu Zoo belong on a schedule-check list, not the confirmed list. Stay walkable if Waikīkī is the goal, and verify the final calendar close to travel. That approach is more useful than pretending every venue has already announced Halloween.