he 15 th Annual Boston Jazz Festival will be held on Friday and Saturday, August 29-30 2025 Maritime Park in Boston’s Seaport District from 5:00 -10 PM Friday . Saturday 12:00 Noon till 10:00 PM Each year, BJF features performances by some of the best jazz musicians in the the business! Since our inception in 2010, we have brought together thousands of attendees and have presented almost 100 recording and international performing artists. From the Us, Europe, Asia, Africa and Canada.