Mateusz Wilamowski, 16, got into difficulty as he attempted to cross the River Tay with two friends.
His body was recovered from the river in the North Muirton area in Perth yesterday after it was spotted by a member of the public.
Daily searches of the area were carried out by police and rescue crews.
Mateusz was from Raciazek in Poland but had been staying with his aunt, uncle and two cousins in the city since May.
His father Maciej travelled to Scotland following his disappearance.
He said in a statement: “Losing Mateusz has left us all devastated. He was a bright, happy, wonderful boy, who was popular and made friends easily. It is hard to believe he is no longer with us.
“I want to say thank you to everyone for their support and kind words. We are grateful to the police and the fire service and everyone who carried out the search when Mateusz went missing.
“We also wish to thank the man who saw Mateusz in the water yesterday so that he was found.”