Organisers of the Rivercity Caboodle say more than 20,000 people turned out on Victoria Ave and Ridgeway St for the street carnival.
Teapot racing was a highlight for many and there were foodcarts, live bands as well as a number of people dressed in steampunk for the party.
Events, marketing and promotions manager at Mainstreet Whanganui, Kelly Scarrow, said she was extremely proud of Whanganui locals who turned out in strong numbers.
"It went beyond expectations ... helped along by fantastic weather," she said.
"Numbers are up from last year so it was much bigger. The content was fuller and the community came out in droves and lots and lots of tourists, which is great for our city.