Saint Anthony is the patron saint of the village, and once a year rockets blast into the air before dawn, signaling all those for miles around that this is San Antonio's day to celebrate! From June 5-13 bands blare, church bells ring and the town is shaken wide-awake. Then come the food, parades, music and dances. For weeks, the castillo in the plaza has been in the making. The bamboo framework is set with fireworks, and at each corner are Catherine wheels and bunches of squibs. Some years the structure is five stories high!

November 2, the Dia de los Muertos (Day of the Dead). An altar is built at the plaza, and remains for two days. A play is held at night.

December 12, the Celebration of the Virgin of Guadalupe. Religious activities are held, with a procession through the streets of San Antonio.

San Antonio's traditional December posada attracts many visitors. On each of several nights preceding Christmas, Mary, riding a donkey, is led by Joseph through the village streets seeking shelter for the impending birth of the Christ-child. She is repeatedly turned away. The procession ends at the church where mass is held. A party follows, with piñatas for the children.

Late in April, San Antonio hosts a Mexican Salsa Competition, a popular event held for public benefit.