The patroness of Terme Vigliatore is Santa Maria delle Grazie, celebrated on 15 September. The festivities, though, begin earlier, on the 13th, the day on which the Fiera di Termini has historically been held in the Parco dei Benedettini, around the Chiesa dei Benedettini.
The church of the Madonna delle Grazie, from the 16th century, was built on the ruins of a Benedictine monastery: on the main door, still today, an inscription can be read.