Auckland moves to alert level 1 today after 14 days since the last community case of Covid 19, Prime Minister Jacinda Ardern has announced.

The Government has been under fire for not announcing the decision despite Cabinet meeting last night. Ardern said the Government wanted to wait to see the results of the last day 12 tests.

She confirmed that Auckland would be moving out of level 2 at midday today after the Valentine's Day cluster was contained.

She thanked Aucklanders but said it's now time to "maintain the position we have all worked so hard for".

"Look after one another and enjoy your weekend," she said.

The decision had been signalled. Covid-19 Response Minister Chris Hipkins said recently he was "optimistic" Auckland would be at alert level 1 this weekend.

And this morning, senior minister David Parker told the AM Show it was "looking good" for an alert level change.

That optimism was underpinned by the fact there hasn't been a Covid-19 community case in two weeks - despite the fact there have been tens of thousands of Covid-19 tests in Auckland over that time.

Ardern said Cabinet's discussion last night was a "preliminary one".

It was based on the results from this morning - which came back with no new community cases.

The majority of New Zealand's frontline workers have now been vaccinated.

Auckland Mayor Phil Goff says the government's decision to return Auckland to COVID-19 Alert Level 1 from noon is great news. However, he says people need to temper celebrations with the awareness that the rampant nature of the virus internationally and the number of returning New Zealanders in quarantine who are testing positive means we cannot rule out further incursions.

"The strongest protection against community transmission will be the widespread vaccination of New Zealanders," Goff said.

"With Aucklanders most often the ones forced to live under the restrictions of Level 2 and 3, it makes sense for Aucklanders to get vaccinated after sections of the community most at risk and before the general rollout of the vaccine across the country.

"I want health authorities and the government to take the level of risk and the burden carried by this community into account before the general rollout of the vaccine in July.

"As New Zealand's largest city and international border Auckland has significantly more managed isolation and quarantine facilities than the rest of the country combined—nine times as many as Wellington and three times as many as Christchurch.

"Auckland is the region most susceptible to another outbreak. We don't want to face the health risks of a further incursion and we want to avoid the costs imposed on jobs, incomes and business by going into lockdown. I hope these facts are taken into account when the wider rollout is implemented."