When news of the engagement broke last year Mr Westenra said both families were delighted and were looking forward to the wedding.
"We're very excited. [Hayley] didn't want to leave the country until she had that ring," he said.
Westenra is believed to have had her dress made by Christchurch wedding gown designer Louise Anderson.
Kitchin said coverage of the wedding was planned for the next issue of the magazine, out on Monday.
"We're delighted to be sharing Hayley and Arnaud's beautiful wedding exclusively in Woman's Day next week. It was a rainy day, but nothing could dampen Hayley's happiness. She looked exquisite."
Westenra first met Mr Sabard when he was working as a sound engineer on one of her tours.
They have been together for just over three years.
Mr Sabard proposed to Westenra - who soared to fame as a teenager - in early 2013 at Lake Wakatipu near Queenstown while the songstress was on a break from recording in London.
- Staff reporter