The temple, encircled with five rows of steps, located on an Attic Ionian pedestal, with a single row of columns with Corinthian capitals, is at the center of the sanctuary. The temple was probably built in the 1st century BC and is a pseudodipteros with 8x11 columns. The stylobate measures approximately 18 x 25 m. The pronaos was distyle in antis with Ionic columns.