August 2026 Events in Sonoma County: Wine, Music and Adult

August 2026 Events in Sonoma County: Wine, Music and Adult

Planning an adults’ weekend in Sonoma County? August is the perfect time to enjoy live music, wine tastings, outdoor theater, local festivals and warm summer evenings in Northern California wine country.

The San Francisco North / Petaluma KOA Resort is not only for families traveling with children. Our Petaluma campground also makes a convenient home base for couples, friends, wine lovers, RV travelers and adults planning a kid-free Sonoma County getaway.

Stay in your RV or reserve one of our furnished camping cabins, then spend your days exploring Petaluma, Sonoma, Sebastopol, Santa Rosa and Healdsburg. Afterward, return to the resort to relax by the pool, enjoy the hot tub or unwind beneath the Sonoma County sky.

Here are some of the best things to do near Petaluma in August 2026.

Downtown Petaluma Sidewalk Sale

August 1–2

Begin your Sonoma County vacation with shopping, dining and drinks in historic Downtown Petaluma. Local boutiques bring their merchandise outside for special discounts throughout the weekend.

After shopping, explore Petaluma’s restaurants, breweries, cocktail bars and riverfront. It’s an easy outing for couples or friends staying at the Petaluma KOA Resort.

Tuesday Night Markets and Live Music

August 4, 11, 18 and 25

Spend a summer evening at the Sonoma Tuesday Night Market, where you can shop for local produce, enjoy prepared food and sample Sonoma County wines. You can also head north to Healdsburg Plaza for outdoor live music in one of wine country’s most charming downtown areas.

These Tuesday events are perfect for guests planning a midweek Sonoma County camping trip with fewer crowds.

Peacetown Summer Concerts

August 5, 12, 19 and 26

The Peacetown Summer Concert Series offers free outdoor music, food trucks, local beer and Sonoma County wine. Bring a lawn chair or blanket and enjoy a casual evening with friends or your significant other.

For travelers searching for free summer concerts in Sonoma County, Peacetown is an August favorite.

Sonoma County Fair

August 7–16

The Sonoma County Fair returns with live entertainment, fair food, shopping and exhibits. Enjoy an afternoon or evening at the fair before returning to your cabin or RV site at the Petaluma KOA.

Gravenstein Apple Fair

August 8–9

Celebrate one of Sonoma County’s most famous crops at the Gravenstein Apple Fair. This popular local festival features live music, artisan vendors, regional food, craft beverages and plenty of apple-inspired treats.

The fair is a great addition to a couples’ weekend, friends’ trip or relaxing wine country vacation.

Mamma Mia! Under the Stars

August 13–30

Add a memorable date night to your Sonoma County itinerary with an outdoor performance of Mamma Mia! under the stars. The show combines a Broadway favorite with the beautiful scenery and warm summer evenings of California wine country.

Enjoy dinner and wine before the performance, then return to the Petaluma KOA Resort after the show.

Cotati Accordion Festival

August 15–16

The Cotati Accordion Festival offers two days of live music, food, drinks and local entertainment. This one-of-a-kind Sonoma County festival has a lively atmosphere and makes a fun outing for adults looking for something different.

Wine and Culinary Weekend

August 20–22

Wine lovers can begin the weekend with Pour + Explore on August 20, featuring rosé and aromatic white wines. Continue the experience with Savor Sonoma on August 21–22, a 21-and-over event featuring wine, food and entertainment.

If you’re searching for camping near Sonoma County wineries, staying at the Petaluma KOA gives you a central place to relax between wine tastings and culinary experiences.

Sonoma Drags

August 26

Trade wine glasses for fast cars during an evening at Sonoma Raceway. The Sonoma Drags offer exciting racing and a fun change of pace from traditional wine country activities.

Plan an Adults’ Getaway at the Petaluma KOA Resort

You don’t have to be traveling with children to enjoy the San Francisco North / Petaluma KOA Resort. Our Sonoma County RV resort and campground is a great option for:

  • Couples planning a romantic wine country getaway

  • Friends attending Sonoma County festivals and concerts

  • Adults visiting local wineries, breweries and restaurants

  • RV travelers looking for a comfortable Petaluma campground

  • Guests searching for cabin rentals near Sonoma County wineries

  • Travelers wanting a central location between Petaluma and other wine country destinations

  • Couples looking for a relaxing midweek escape with fewer crowds

Spend the day wine tasting, shopping, attending a concert or exploring Sonoma County. Then return to the resort to swim, soak in the hot tub, relax at your campsite or enjoy a peaceful evening outside.

August is a popular time to visit Northern California wine country, so reserve your RV site or Petaluma camping cabin early.

Book your August Sonoma County getaway at www.petalumakoa.com or call (707) 763-1492.




Event dates, times and details may change. Please confirm information with the event organizer before attending.

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