Top Wilmington & New Castle County, Delaware Events Happening This September 2026
Looking for things to do around Wilmington, Hockessin, and New Castle County this September? From historic festivals to riverfront rides to fall celebrations, the Brandywine Valley has a packed calendar this month. Here's your local guide.
Bento Con 2026
What it is: A community pop-culture and collectibles convention for all ages. When: Saturday, September 12, 2026, 10:00 AM Where: New Castle Public Library, New Castle, DE
ReThink Fashion Show — The ECO Edit
What it is: A sustainability-focused fashion show highlighting eco-friendly and upcycled design. When: Thursday, September 17, 2026, 6:00 PM Where: Goodwill Outlet & Recycling Center, New Castle, DE
The Menopause Conversation
What it is: A community discussion and wellness event for local residents. When: Wednesday, September 9, 2026, 6:00 PM Where: Huxley & Hiro Booksellers, Wilmington, DE
Annual Block Party — Historic New Castle
What it is: An outdoor community celebration on the Green in Downtown Historic New Castle featuring local bands, food trucks, and a live art auction benefiting the New Castle Senior Center. When: Sunday, September 27, 2026, 4:00 PM – 8:00 PM Where: The Green, Downtown Historic New Castle, DE
Art on the Green 2026
What it is: A local arts and crafts festival featuring area artists and vendors. When: Saturday, September 26, 2026, starting 5:00 AM Where: Battery Park, New Castle, DE
Hot Jam Festival
What it is: A lively music festival near Hockessin featuring live bands and community vendors. When: Saturday, September 26, 2026 Where: Center for the Creative Arts, Yorklyn, DE (near Hockessin)
Mt. Cuba Center Tree Festival
What it is: A family-friendly fall celebration at one of the region's most beautiful native plant gardens, just minutes from Hockessin. When: Saturday, September 26, 2026 Where: Mt. Cuba Center, Hockessin, DE
Delaware Saengerbund Oktoberfest
What it is: A classic Oktoberfest celebration with German food, beer, and live music. When: Friday, September 18 – Sunday, September 20, 2026 Where: Newark, DE
Bottom Line
From arts festivals in New Castle to fall celebrations in Hockessin and Yorklyn, there's plenty happening across the Wilmington and New Castle County area this September. Follow along for more local event guides, real estate updates, and neighborhood highlights in the Brandywine Valley.