Kiwis in the North Island won't need the winter blankets this week with overnight lows set to be similar to mid-summer but MetService warns parts of the South Island will see heavy rain in the coming days.
A powerful high east of New Zealand is stalled this week, pulling down sub-tropical air, WeatherWatch said.
This will mean Kiwis in the North Island will see warm overnight temperatures, similar to what they would experience in the middle of summer.
"The most noticeable thing, especially for the North Island, will actually be the overnight temperatures," MetService meteorologist Mmathapelo Makgabutlane told Newshub.
"We've got this warm and humid air streaming in from the north of the country, so that'll be bringing in quite humid, quite muggy conditions. So if you do have those winter blankets still nearby, definitely not a week for those."
With school holidays in full swing, Makgabutlane said the best places to be for Kiwis looking for fine weather are the eastern parts of both the North and South Islands.
"I can say the eastern part of the North Island is not looking too bad, especially for the next couple of days," Makgabutlane said.
"They do get that front, especially sort of central Hawke's Bay southwards, that front reaches there during Wednesday but anything north of that on the eastern coast of the North Island should be remaining pretty good this week."
But it isn't all good weather around the country with MetService issuing weather warnings and watches for parts of the South Island.
An orange heavy rain warning is in place for Tasman west of Motueka from 3pm Tuesday to 3am Wednesday and the ranges of Westland from Otira southwards from 3am to 6pm Tuesday.
MetService said these areas can expect up to 110mm of rain with peak rates of 15 to 25mm/h expected.
"Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous," MetService said.
A heavy rain watch is also in place for the Richmond and Bryant Ranges, the Rai Valley area and northern parts of the Marlborough Sounds, the ranges of Buller and Westland north of Otira and Fiordland for Tuesday.
MetService says this is because a front is forecast to move over the South Island from the west on Tuesday through to early Wednesday, which will be preceded by a strong and moist northerly flow.
Makgabutlane told Newshub once that front passes through the western parts of New Zealand can expect some "pretty good outdoor weather".
