Advance voting began on Saturday and by the end of yesterday, 372,295 people nationwide had cast their vote.
A breakdown of voting so far in the southern electorates is not available.
Early voting has been increasingly popular in recent elections, accounting for 47% of votes at the last election, a number that was expected to rise to about 60% this year, partly driven by the threat of another lockdown.
Advanced voting place mobile manager Craig Dinnissen, who is also a senior sergeant, cast his early vote at the Otago Polytechnic voting station yesterday, saying it took pressure off voting day and was faster and easier.
There were also more opportunities for people to "happen" upon the booths and decide to get their vote in early, he said.
"You just see the opportunity and think ‘why not?"’
The booths were operating under Covid-19 Alert Level 2 rules, meaning social distancing measures were in place and people were being asked to use the Covid-19 tracing app and sanitiser before voting.
On Saturday 92,908 votes were cast in New Zealand. A further 67,677 people voted on Sunday.
On Monday, 107,952 people voted, compared with 39,570 on the same day of advance voting during the last election.
Yesterday a further 103,758 voted throughout New Zealand.
Dunedin registrar of electors Rachel Heller said five voting booths were opened across the city at the weekend.
That increased to eight on Monday.
By this Saturday, there would be 23 different locations around Dunedin to vote, she said.
"It has been steady.
"As you can see from the numbers on the [Electoral Commission] website, it’s been busy."
— Additional reporting The New Zealand Herald