According to The Times, his last holiday was when he left Buenos Aires with a group of fellow Jesuits.
He said: "I do take holidays but in my own habitat.
"I change rhythm. I sleep more, I read things I enjoy, I listen to music, I pray more . . . and this is restful for me."
Pope Francis said he would rather stay in the Casa Santa Marta for a time of rest and relaxation.
He explained, waking up later than his usual 4.45am, saying a private Mass, and reducing business meetings and public appearances is enough of a holiday for him.
The Times said the pope attributed his frugal outlook on holidays to the fact he didn't grow up with a silver spoon in his mouth.
Francis worked in a shoe factory during the school summer holiday and worked in a chemistry laboratory to help with living costs while at university.
The Pope is due to visit Colombia next month.
