Moutinho failed to land a move to Spurs on transfer deadline day last month.
He told the Daily Mirror: "Tottenham is not in my head now, although I was flattered by the interest, especially by the coach. Andre Villas-Boas is one of the best coaches in Europe today.
"The transfer window is closed but now I am focused on Porto and prefer not to talk about something which may or may not happen.
"Porto is a club which offers maximum stability to help me show my best level.
"I cannot talk about anything else until that changes."