From mid-June through late August, the Spreckels Organ Pavilion in Balboa Park transforms into San Diego's best free outdoor concert venue. The Twilight in the Park series runs Tuesday, Wednesday, and Thursday evenings throughout the summer — a long-running tradition that fills one of the most beautiful outdoor spaces in the city with military bands, Dixieland jazz, big band swing, and Latin salsa. The 2026 summer season begins June 16 and runs through August 27. Concerts start at 6pm and typically run 90 minutes. The Spreckels Pavilion holds several thousand people and the lawn behind it opens up to the park — families set up blankets on the grass, couples …