September in San Antonio marks the transition to fall with cultural conventions, artistic programming, live entertainment, and seasonal activities. The city’s calendar features a major anime and gaming convention, professional sports, and various fall events that appeal to a range of audiences.
September 4–6, 2026 — San Japan (San Antonio)
San Japan is South Texas’ largest anime and gaming convention, bringing fans together at the Henry B. González Convention Center for panels, cosplay contests, workshops, artist alley, gaming, and performances. This three-day event is traditionally held over Labor Day weekend in downtown San Antonio.
September 2026 — San Antonio Missions Baseball Games (San Antonio)
Throughout September, the San Antonio Missions host regular-season games at Nelson W. Wolff Municipal Stadium. Fans can enjoy minor league baseball with special promotional nights, family activities, and weekend series.
September 2026 — San Antonio Concerts & Performing Arts (San Antonio)
September brings a seasonal lineup of concerts, theatre performances, and cultural productions at venues like the Majestic Theatre, Tobin Center for the Performing Arts, and local amphitheaters. Performances span genres including symphonic, jazz, mariachi, and touring Broadway shows.
September Planning Notes
Weather: Warm days with cooler evenings later in the month, making early evening events more comfortable.
Crowds: San Japan draws strong attendance, especially on peak cosplay and panel days. Sports and performing arts events see steady local crowds.
Best for: Anime and gaming fans, baseball games, live music, and theatre performances.
| Date | Event | Location | Brief Description |
| Sep 4–6, 2026 | San Japan | San Antonio | Major anime and gaming convention |
| September | Missions Baseball Games | San Antonio | Minor league baseball with promotions |
| September | Concerts & Performing Arts | San Antonio | Seasonal live music and theatre |