Christchurch's annual Big Band Festival is in full swing, with over 40 performances in pop-up CBD locations this weekend.

Locals are being encouraged to make their way into the central city, and enjoy performances as part of Latino week running as part of the festival.

Big Band Festival spokeswoman Judith Bell expects a great atmosphere in Christchurch this weekend.

"I think it is going to be an epic weekend, and with the beautiful weather it is going to be one of the best Labor weekends since the earthquakes."