Rafael Montero was born to his Dominican parents on October 17, 1990, in Higuerito, Dominican Republic.

The player grew up in the Dominican Republic with eight older brothers. He attended Escuela Francisco Sergio Castillo High School as a child.

He has not opened up about his childhood, parents, or siblings. It seems like he likes to keep his family details private.

Montero has not revealed any information about his mother and father yet. His parents must be proud of his achievements and recent work as a player.

Rafael lives separated from his parents and lives with his wife, Yasmina, and daughter Victoria. 

The couple has a friend named Milagro Florentino to help in difficult situations. Milagro was a helping hand for Yasmina when she was pregnant, and Rafael was out of the nation of his game.

The Pitcher was seventeen when he left his rural hometown of Sabana Higuero 250 kilometers southeast to Santo Domingo.