"I really enjoyed it," Hart told ESPN. "I'm not going to come back, but I had a good time."
Torino reportedly could not afford to sign Hart permanently, and the 30-year said he could not got out on loan again given his age.
Speaking on Hart's time at the club, Torino president Urbano Cairo said: "Hart made a few mistakes, especially when coming out for the ball…We probably didn't expect so many mistakes from an England international…but he did some good things too."
Hart has a contract at City until 2019, but it is unclear whether he is in the future plans of manager Pep Guardiola.