San Antonio Diwali 2025. Diwalisa will illuminate hemisfair and arneson river theatre in downtown san antonio on saturday. Diwali for the year 2025 is celebrated/ observed on tuesday, october 21.

This year’s diwalisa takes place on saturday, nov. The diwali celebration in san antonio has grown into a magnificent feast for all the senses, with dances, food, music, art, and unforgettable experiences at the arneson river.