It will be held at Odlins Plaza on the waterfront and feature performances by traditional and contemporary Pacific artists.
There will also be traditional pacific food, including a Pacific Island Cook-Off and a range of family-friendly activities.
The festival will be MCed by Tofiga Fepulea'i a former member of the comedy duo the Laughing Samoans.
The Wellington council says it is an opportunity for all Pacific people to celebrate and share their knowledge, values and beliefs.
The Wellington Pasifika Festival runs from 12 noon until 6pm.