Forecasters predict temperatures below zero in parts of Aotearoa tonight.
Although many would have felt the cold last night, with most centres not reaching double digits, even colder weather is en route.
Niwa has forecasted a frosty few days and temperatures as low as -3C to -4C in the central North Island tonight.
The agency forecasts even colder weather tomorrow, noting a likely drop to around 5C in Auckland.
Metservice meteorologist Mmathapelo Makgaputlane said a few fronts moved up the country on Monday and yesterday and a western flow brought in cool air over Aotearoa.