The ASB Classic's rain refund policy has been enacted.
Wozniacki will face second seed Julia Goerges in the final, a player who she narrowly leads 5-4 in their head-to-head.
Heavy rain throughout the week in New Zealand's largest city had caused havoc with the schedule, forcing organisers to play the quarter-finals and both semi-finals on Saturday and move the final to Sunday.
Wozniacki dropped the first set before beating 19-year-old wildcard Sofia Kenin 4-6, 6-2, 6-4 in a quarterfinal then overcame qualifier Sachia Vickery 6-4, 6-4 in a tight semifinal.
Georges won her last two tournaments of 2017 and extended her winning streak to 14 matches when she claimed the Auckland singles title for the first time at her ninth attempt, and after two previous finals appearances.
The German beat Polona Hercog 6-4 6-4 in the quarter-finals before moving into the final with a 6-1 6-4 win over Taiwan's Hsieh Su-wei.
From that point, she held serve through to a 6-4 first-set win, and didn't let a Wozniacki surge prevent her from grinding out a second-set tiebreak triumph.
Despite that disappointment Wozniacki - who won the WTA Finals in Singapore in October - was happy with her build-up to the year's first grand slam and is targeting silverware. "I've been very consistent in this tournament over the past few years and it's nice to finally get this big trophy", Goerges said.
"It's going to be a tough match tomorrow but I'm just excited for the challenge and it's a great lead-up for me, I feel good about my game and my body".
Play was cancelled by Classic organisers for all of Thursday and Friday due to the "weather bomb" striking the City of Sails, with Saturday following suit.
"I have got a lot of matches under my belt and it was the type of preparation I hoped for", Wozniacki said as she looked ahead to the Australian Open, which is to begin on Monday next week.