Summer festivals for New Castle County families
Festival season is the best of summer with kids — music, food, and somewhere to run around. This list is pulled straight from our live calendar, soonest first, so it stays current. Dates and details are on each event's page.
Delaware State Fair
Thu, Jul 23 · Delaware State Fairgrounds
This event offers a wide variety of activities that can appeal to different ages within a family, making it a potential full-day outing.
Kindergarten Readiness Health Fair
Sat, Jul 25 · Appoquinimink Library
This event offers a variety of activities and resources that may help families prepare young children for the transition to kindergarten.
Summer Block Party — Helen Chambers Park (Play Streets)
Tue, Jul 28 · Helen Chambers Park
The event offers a variety of activities and free refreshments, which can make for an enjoyable evening out for families.
Peach Paradise Harvest Party
Sat, Aug 1 · Milburn Orchards
Orchard harvest parties often provide a relaxed atmosphere for families to enjoy seasonal produce and outdoor activities.
Wyoming Peach Festival
Sat, Aug 1 · Downtown Wyoming
Peach Paradise Harvest Party at Milburn Orchards
Sat, Aug 1 · Milburn Orchards
This event offers a chance to pick fresh fruit and enjoy a meal in an outdoor setting.
Summer Block Party — Eddie Michaels Playground (Play Streets)
Tue, Aug 4 · Eddie Michaels Playground
The event offers a variety of activities and free food, which can make for an easy evening out.
CACC Chinese Festival
Fri, Aug 7 · Chinese American Community Center (CACC)
This festival offers a fantastic opportunity to expose your children to a different culture through engaging performances, delicious food, and interactive exhibits, all in a lively community setting.
Fireworks & Fountains Shows
Sat, Aug 8 · Longwood Gardens
The event typically proceeds even in rain, offering a degree of weather resilience.
Summer Block Party — Mack Park (Play Streets)
Tue, Aug 11 · Mack Park
The event provides a variety of activities and free refreshments, making it a good option for a casual family outing.
End of Summer Family Picnic
Thu, Aug 13 · Ashland Nature Center
It's a wonderful, free opportunity to gather the family, enjoy live music and activities in a beautiful outdoor setting, and grab dinner from local food trucks without any cooking or cleanup.
Middletown Olde-Tyme Peach Festival
Sat, Aug 15 · Downtown Middletown (Main St & Cochran Square)
Festivals often provide a variety of activities and entertainment that can appeal to different age groups within a family.
Delaware Caribbean Carnival
Sat, Aug 15 · First State Heritage Park
Festivals often provide a lively atmosphere with diverse food and entertainment options that can appeal to a wide range of ages.
Summer Block Party — Stapler Park (Play Streets)
Tue, Aug 18 · Stapler Park
This event offers a variety of activities and free refreshments, making it a good option for a casual family outing.
Harrington Heritage Day
Sat, Aug 22 · Downtown Harrington
Summer Block Party Grand Finale — Rodney Square (Play Streets)
Tue, Aug 25 · Rodney Square
This event offers a variety of activities and free refreshments, which may appeal to a wide range of ages.
See everything on the full calendar →
Questions parents ask
When is festival season in Delaware?
Summer is the peak — roughly June through August — with community festivals, music in the parks, and food events most weekends. This list updates as new dates are announced.
Are summer festivals free?
Many are free to attend (look for the Free tag), though food and rides usually cost extra. Each event's page has the current details.
Get the good ones before they fill up
Free, one email a week — the weekend's best picks for New Castle County families, tailored to your kids' ages.
More guides
Checked against each place’s current info.
Event dates come straight from our live calendar and refresh automatically. Last reviewed June 14, 2026. Confirm anything dated on the source before you go.