Germinale never played for Italy youths team officially but received an Azzurri U18 call-up against Juniores League Best XI along with team-mate Matteo Momentè and Giacomo Bindi in 2006.
In 2006, Germinale did not participate in official Italian youth team matches but was included in an Azzurri U18 squad alongside teammates Matteo Momentè and Giacomo Bindi during a match against the Juniores League Best XI.