In an unprecedented move from it's usual Fall debut, Showtime has announced that the 8th season of Dexter will begin this Summer, with it's premiere episode airing on June 30th, 2013. The official Facebook post reads:
"We have some EXCITING NEWS... Get ready to spend your summer with Dexter! Returning for an eighth season on Sunday, June 30th at 9PM ET/PT, immediately followed by the series premiere of Ray Donovan at 10PM ET/PT. Only on Showtime Networks!"