The Spain Under-21 international, who will wear the No. 18 jersey, will train with his new teammates for the first time Thursday.
The German champion revealed that the left-footed Spain Under-21 international, who can also play on the wing, will link up with his new teammates Thursday.
"He is quick, good in the tackle and can get forward," Bayern sporting director Matthias Sammer told the club's official website.
Bernat, who is a product of Valencia's youth academy, will wear the No. 18 jersey at Bayern.