The 34-year-old striker, whose contract with PSG expires this summer, is expected to announce his next club this week and multiple reports are suggesting he will masks the move to Old Trafford.
Guidetti, 24, spent close to seven years with Manchester City so knows what Ibrahimovic will have to deal with and is confident Sweden's best ever player will handle it with aplomb.
"I think he knows the Manchester weather like I do!," said Guidetti.
"He will settle. Anywhere he has gone he has performed, he is a world class player and is a world class person. Any team that gets him should be very grateful."
And Guidetti, now with Spanish club Celta Vigo, believes Ibrahimovic will also have a great impact on United's youngsters as he has done in the Sweden national team setup over the years.
"The way he speaks with all the younger players, the way he demands quality, it is a true pleasure to play with him," he added.
"There'll never be another Zlatan: he's a one-off. The way that he talked and behaved has inspired me.
"He would say 'I'm going to be the best', and that's not something a Swede normally says!
"That's when I realised that you could say that. We do want to be the best! He changed the way we think."