Best Things to Do in Sonoma County This September

Looking to fill a couple hours of your day while in Sonoma County? With so many offerings in the area, we’ve curated the top events this month. Less researching and more having fun. Enjoy!

Three clear glasses filled with golden craft beer are placed on a wooden surface. The glasses feature a white logo for the Petaluma River Craft Beer Festival, including hop cone and droplet designs. Discover one of the best things to do in Sonoma County this September—savoring this light, foamy delight.
Photo courtesy of Visit Petaluma, CA.

September 13

Petaluma
100 Petaluma Blvd North

Celebrating its 11th anniversary in 2025, the Petaluma River Craft Beer Festival raises funds to help power local non-profits, schools and community service projects. Festival-goers can enjoy local craft brews while feeling secure in the knowledge that their beers are giving back to their community.

Three paper bags labeled "Gold Ridge Organic Farms" contain various apples, perfect for enjoying some of the best things to do in Sonoma County this September. The bags are marked "Honeycrisp Apples," "Pink Pearl Apples," and "Heirloom Apple Blend," with several apples displayed on a wooden surface.
Photo courtesy of Gold Ridge Organic Farms.

September 20

Sebastopol
3387 Canfield Rd

With more than 12-thousand apple trees — and 70 or so heirloom varieties — there’s a long list of reasons to celebrate at Gold Ridge Organic Farms in Sebastopol. Enjoy apple tasting, fresh apple cider and more. Did we mention the farm also produces award-winning organic olive oil?

A woman stands and smiles while holding a paddle with the number 30 at an auction event, one of the Best Things to Do in Sonoma County This September. Surrounded by seated, clapping guests, the atmosphere is lively and enthusiastic. The event takes place in a well-lit venue with a white canopy.
Photo by Alexander Rubin.

September 20

Sonoma
24737 Arnold Dr

This weekend-long event includes wine, food, and a live auction. Proceeds raised benefit a number of Sonoma County charitable organizations.

People dressed in vintage attire attend a themed event with tables set with wine glasses and patriotic decor. A black-and-white movie is projected in the background, creating a nostalgic ambiance. It's one of the Best Things to Do in Sonoma County This September, adding a touch of classic charm to your fall plans.
Photo by Hiromi Yoshida.

September 20

Glen Ellen
2400 London Ranch Rd

“Beauty Ranch, the Land of Dreams” is this year’s theme of the Park’s largest annual fundraiser. Savor a progressive meal by Park Avenue Catering, raise your paddle to help keep the Park’s dreams alive, and dance the night away knowing you are contributing to a great cause!

A lively outdoor wine-tasting event, one of the Best Things to Do in Sonoma County This September, features attendees sampling various wines at multiple tables adorned with brown tablecloths. String lights are hung overhead, and lush greenery surrounds the area. People are engaged in conversation and enjoying the atmosphere.
Photo courtesy of Access Alexander Valley.

Seoptember 22-28

Sonoma
Various Venues

Experience a week-long, reservation-based celebration of wine, hospitality, and community with Alexander Valley Wines! Relax at intimate events at wineries throughout the Alexander Valley and enjoy special pairings, free corkage, exclusive by-the-glass menus, winemaker pourings, and more at the Matheson, Dry Creek Kitchen, Montage, and other restaurant partners.

A person wearing a grape-stained T-shirt that reads "Valley of the Moon Vintage Festival" stands in a wooden barrel, likely stomping grapes. Another person with a similar T-shirt is partially visible. The background shows a blurred crowd, highlighting one of the best things to do in Sonoma County this September.
Photo courtesy of Valley of the Moon Vintage Festival.

September 25-27

Sonoma
Various Venues

At the Valley of the Moon Vintage Festival, you’ll celebrate what makes Wine Country go ’round: grapes. Held at the historic Sonoma Plaza, this festival dates all the way back to 1897 when local playwright Ben Weed performed his play “The Vintage Festival” about the Roman god of wine, Bacchus. 

People walk through an outdoor market on a sunny day. There are various colorful stalls, including a vibrant one on the right with hanging decorations. A woman in pink walks with a small white dog on a leash, while others browse and enjoy the market—one of the best things to do in Sonoma County this September.
Photo courtesy of The Healdsburg Center for the Arts.

September 27

Healdsburg
Healdsburg Ave & Matheson St

Head on over to the Healdsburg Plaza to spend time at the annual Healdsburg Arts Festival. Featuring fine arts and crafts from over 40 artists, festival-goers can enjoy live music, food and wine as they engage with the local Healdsburg arts community. 

A large crowd of people gathers along a tree-lined street with tents and stalls on either side. Many are wearing hats and sunglasses, reflecting a sunny day. The street is flanked by buildings and shaded by leafy green trees, showcasing one of the best things to do in Sonoma County this September.
Photo courtesy of Railroad Square Music Festival.

September 28

Santa Rosa
Santa Rosa's Historic Railroad Square

The Railroad Square Music Festival is a free day of music taking place in Santa Rosa’s Railroad Square created by The Lost Church, an organization that believes that people are in need of accessible spaces to share their art and storytelling, according to its website. Help The Lost Church continue expanding the North Bay music community and make sure to get tickets to the 2025 festival today.

Event Venues

Looking to see what’s happening right now in Sonoma County? Our comprehensive list of venues across the city below will help you find what you need to know what’s going on.

Looking for more things to do in the area?

Visit our What to Do in Northern California page!

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