July 23-26, 2026: Enjoy a four-day/night festival with FREE concerts by famous name performers, exciting midway rides and games, a large selection of food vendors, arts & crafts, children’s activities, and spectacular fireworks over Lake Ontario.

 

Set in the picturesque Port City of Oswego during the third week of July, events are concentrated around several music stages and amusement rides located throughout the City and nestled in beautiful parks with scenic walkways, including East (Washington) Park,  Cahill Pier overlooking Oswego Harbor, Veteran’s Park, and stunning Breitbeck Park surrounded by the Oswego Marina, Harbor & Great Lake, and Children’s Outdoor Splash Park.

 

This year, Harborfest will commemorate 36 years of famous activites and performances! We invite you to be a part of this beloved tradition that has brought joy, music, delicious foods, and famous entertainers to this historic Upstate City every year for three decades.