Big Bay Boom 2026 — San Diego 4th of July Fireworks

Four barges line up across San Diego Bay — off Shelter Island, Harbor Island, Embarcadero North, and the Coronado Ferry Landing — and at 9:15 PM on July 4th, they fire simultaneously. Eighteen minutes of synchronized pyrotechnics choreographed to music, reflected off the water, visible from nearly every shoreline in the city. This is the Big Bay Boom, the largest fireworks show on the West Coast, and San Diego defining summer night. The 2026 show marks the nation 250th birthday. The Port of San Diego and Fleet Week Foundation have joined forces to produce a celebration scaled to the occasion. FOX 5 broadcasts the full show live starting at 8 PM, including a national anthem performance at a landmark location and stories about San Diego maritime and military heritage. The best part: it costs nothing. The entire show is free to the public. Bring a blanket, find a spot along the waterfront, and watch the sky light up. MTS runs free park-and-ride lots throughout the system — pay one fare and bring a friend for free. Harbor Drive fills early, so transit is the move. If you have never stood on the Embarcadero with thousands of strangers looking up at the same sky, you do not know what San Diego 4th of July feels like. The boom you hear is not just fireworks. It is an entire city exhaling at once.