Temperini began his career with Newell's Old Boys.[1][2] He was an unused substitute on two occasions during the 2015 Argentine Primera División season for matches with Rosario Central and San Martín.[1] In August 2016, Temperini joined fellow Primera División team Talleres on loan.[1][3] He returned to his parent club a year later without playing for Talleres' first-team, only featuring for their youth sides.[1][4] Temperini's professional debut arrived on 29 October 2018, with the goalkeeper featuring for the full duration of a 2–0 win at home to Argentinos Juniors; having previously been an unused substitute in ten further fixtures.[1]