The group will begin their performance at the River Traders' market on the downtown riverbank and progress to Majestic Square, "collecting people" on the way to take to the festival.
New Zealand's Got Talent semi-finalist Tawaroa Kawana, who wrote the theme waiata for Te Wiki o te Reo Maori (Maori Language Week), will also perform. Race Relations Commissioner Dame Susan Devoy will address the crowd at midday.
More than 4000 people enjoyed the festival when it was held for the first time last year.
Mayor Annette Main said the event was becoming a symbol of the district and recognised the value and diversity people of different backgrounds bring to the community.
"The combination of our warm hospitality, manaakitanga, the beauty of our Whanganui River and great public spaces provides a backdrop for the festival where everyone can come together to enjoy the explosion of colours, smells, tastes and sounds that demonstrate our cultural diversity."
Mainstreet Wanganui organiser Elise Goodge said the festival was a good way to break down cultural barriers, especially when it came to food.
"People will try new things during a festival event like this. They can sample treats from a cuisine they may not have tried before, which opens them up to experiencing a part of another culture."
For more information visit www.facebook.com/WhanganuiFestivalCultures.
