May brings Marin’s early-summer energy with a mix of community, outdoor, and local-interest events. Families can explore ranch life, classic cars, waterfront learning, and relaxed weekend gathering spots across the county. The longer days make it an especially good time to get outside and enjoy Marin’s seasonal rhythm. Here are our picks for family-friendly Marin events in May 2026:
A Day on the Ranch
Date: May 2, 2026
Location: Black Mountain Ranch, West Marin
Time: 1:00 PM – 4:00 PM
Spend an afternoon on a working ranch surrounded by open land, community activities, and wide West Marin views. This event is a strong pick for families who want a laid-back outing with room to explore, learn about local agriculture, and enjoy a more grounded side of Marin County life.
Greg Borrelli’s May Madness Car Show
Date: May 9, 2026
Location: Downtown San Rafael (4th Street between Lincoln and D Streets)
Time: 12:00 PM – 6:00 PM
A free, family-friendly outdoor car show and parade. Over 200 classic, custom, and art cars line 4th Street for Marin’s longest-running car show.
SEAS Youth Sailing Program (Science, Engineering, Art & Sailing)
Date: May 16, 2026
Location: Bay Model Visitor Center, Sausalito (Brigantine Matthew Turner)
Time: 9:30 AM – 2:00 PM
Local kids (ages 8–15) can board the historic Matthew Turner for a full-day educational sail on San Francisco Bay. This hands-on program teaches marine science and seamanship: participants help raise sails, practice knot-tying, and perform ocean observations under the guidance of experienced sailors.
Mill Valley Memorial Day Concert
Date: May 25, 2026
Location: Mill Valley, CA
Time: 12:00 PM – 8:00 PM
A lively holiday gathering that brings the community together for an afternoon and evening of live music, local energy, and outdoor celebration. With a welcoming public setting and a strong neighborhood feel, it makes an easy choice for families looking to spend Memorial Day in Marin.
Marin Country Mart – Saturday Farmers Market
Date: May 30, 2026
Location: Marin Country Mart, 2257 Larkspur Landing Circle, Larkspur, CA 94939
Time: 9:00 AM – 2:00 PM
For an easygoing weekend plan, this market blends seasonal shopping with a polished but casual atmosphere. It works especially well for families looking for a simple daytime outing with food, flowers, and a lively local crowd in a convenient central location.
