The Tri-Valley comes alive every fall with Halloween-themed events for adults looking to celebrate the season in style. From wine tastings and costume contests to haunted bar crawls, there’s no shortage of festive fun for grown-ups. Check out our top picks for adults-only Halloween events in the Tri-Valley this year.
Witches Night Out
WHERE: Downtown Livermore
WHEN: Wednesday, October 7th, 2026, from 4:00 PM – 9:00 PM
Start your Halloween celebrations in Livermore with Witches Night Out, an adults-only evening of magic and fun in the heart of Downtown Livermore. Gather your friends and sip on specialty Halloween-inspired cocktails, savor seasonal dishes, and take advantage of exclusive shopping specials. Local shops and eateries transform the streets into a bewitching scene, offering an unforgettable night of festive exploration.
Halloween Brew Crawl
WHERE: Downtown Pleasanton
WHEN: Saturday, October 24, 2026, at 5:00 PM
Downtown Pleasanton transforms into a haunted hub for the Halloween Brew Crawl! Sample more than 25 craft brews from local breweries, enjoy live music, and show off your best costume. This adults-only event starts at the Museum on Main, where you’ll receive a commemorative glass, wristband, and map to navigate the spooky crawl.
Hallo-Wine Party Tour
WHERE: Livermore Wine Trolley
WHEN: Saturday, October 24, 2026, from 6:00 PM – 9:00 PM
Experience the Tri-Valley’s best wineries on the Hallo-Wine Party Tour! Enjoy tastings at Murrieta’s Well, McGrail Vineyards, and Wood Family Vineyards. Each stop pairs a full wine flight with Halloween-themed treats. Costumes are encouraged, making this adults-only trolley tour both festive and fun.
