On the Sunday immediately after May 15, the Romería de San Isidro is celebrated, a saint that despite not being the patron saint of the town, is the one of the farmers, and since San Fulgencio is an agricultural town, this festivity is also celebrated.

In the early morning the pilgrims gather at the door of the church to accompany the Saint carried by a cart with oxen to the “Paraje El Oasis”, where after celebrating various religious cults popular songs are usually sung.