Perez ended the season with personal-best haul of 13 goals in all competitions.
The forward's goals helped Newcastle United finish 13th in the league.
Tenerife-born Perez headed for Spain after scoring in Sunday's 4-0 win over Fulham at Craven Cottage.
“I’m off to Spain," said Perez. "I’m looking for some sun. Now I’m focused on enjoying my holidays, to rest, because I need it.”
Perez, however, was hopeful of a first call-up to Spain's senior squad after hitting form in the second half of the season, having previously represented his country at Under-21 level.
Luis Enrique today named his squad for next month’s games against Faroe Islands and Sweden.
There was a surprise recall for 34-year-old Santi Cazorla, now at Villarreal, but no place for Perez, who suggested last month that it was "time for a change" after five years at St James's Park.
Perez is mindful that a return to Spain could help his international career.
"There are going to be options,” said Perez. “That means I have done something well, but it doesn’t mean I’m going to leave 100%. It’s going to be a difficult decision. It depends on a lot of things.”
Asked about his Spain hopes after scoring a hat-trick against Southampton last month, Perez said: "It's a dream to be in that Spanish team, but it's not something I'm worried about now.
"I just want to finish as best as I can, and then we'll see what happens."