Looking for the Sea Isle City 2026 Concert Series Schedule click here: Sea Isle City Concerts 2026 . Get Ready to Rock at the Sea Isle Concert Series 2025! Summer in Sea Isle City, NJ is about more than just beach days and promenade strolls—it’s about music, memories, and magical nights under the stars! If you love live music, ocean breezes, and free entertainment, then you’re in for a treat because the beloved Sea Isle City Concerts in Excursion Park are back for another sea