Julia Vignali was born in Paris to an Italian family from Parma. After studying commerce at the Grenoble School of Management, she briefly worked at the marketing service of Polydor and then appeared in advertisements. She began her career on television in 2010 presenting the weather on Canal+ and then the program "La Maison des Maternelles" on France 5. She left the program in 2015 to become a replacing columnist for the program C à vous (2009) hosted by Alessandra Sublet on the same channel. The next year, she was also a columnist for her radio program broadcast on Europe 1. In October 2016, she joined TF1 to present a weekend program broadcast every Saturday morning. Julia Vignali has also appeared as a guest role in some television films and series.