Fire crews have worked through the night to manage any flare-ups of the blaze that tore through Lake Ōhau in Mackenzie District, destroying multiple homes.
A drone with an infrared camera was also being used to detect hotspots overnight.
Residents who were forced to flee when the fire broke out in the early hours of Sunday morning were able to visit the lakeside village yesterday.
Those needing to retrieve essential items from undamaged properties will be allowed back today.
The perimeter of the blaze now stretches across 40 kilometres of land and around 500 hectares of land has been burnt.
Fire and Emergency New Zealand's Mike Grant told TVNZ1's Breakfast this morning the fire containment lines were a success overnight and the fire's perimeter hasn't expanded since yesterday.
Grant says as of around 7am winds are at 80km, sometimes gusting stronger.
Investigators looking into the cause of the fire would like to hear from anyone who took photos or video of the fire in the early hours of Sunday morning.
The wildfire destroyed between 40 and 50 structures. (Source: Other)
SHARE ME