The wedding incorporated the couple's roots with an "island beach meets Texas" theme that included Brazilian food, celebrity news outlet Entertainment Tonight reported on Sunday.
A Texas native, McConaughey announced at the Texas Hall of Fame gala in March that he and Alves were relocating from California to Texas to raise their almost 4-year-old son, Levi, and 2-year-old daughter, Vida.
Alves is a model and handbag designer originally from Brazil where she spent much of her childhood on the beaches of the country's Bahia state.
A representative for McConaughey told People magazine that Alves will take the actor's last name, becoming Camila McConaughey.
McConaughey, 42 and Alves, 30, met in 2006 at a bar in Los Angeles and have been dating ever since.
McConaughey announced the couple's engagement on December 25, 2011, via his WhoSay web page, where he posted a picture of the couple kissing with the message, "just asked camila to marry me, merry Christmas."
"Magic Mike," McConaughey's latest film in which he plays a strip club manager, is set to hit US theatres on June 29.
