The nearby cockatoos were singing along "as usual", Van Reenen said, and the "visiting public were generous" as well.
"It's actually a very expensive event to run, but we're always able to hand out funds to our chosen charity for the year, which is Women's Refuge."
Brass Whanganui band leader Bruce Jellyman said the music, including the backing of singer Shelley Walls, went off "without a hitch".
"We work often with Shelley, and she's very good at waltzing in and doing the singing bit," Jellyman said.
"It was a beautiful evening with clear skies, and it didn't get cold either.
"I don't know how many people were there, but it was a hell of a lot. There were lots of families and kids there too, which was cool to see.
"We've gone from being rained off to having the loveliest night of the year."