Hot temperatures this weekend will be fleeting, as a cold front is set to make its way up the country from Sunday.
West of the South Island will be hit with the most rain, while parts of the east coast will reach early 30s.
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MetService meteorologist Claire Flynn says the cooler temperatures will hit the south of the country first.
"As we go in to Sunday there is a cold front that's going to be moving on to the south of the South Island. That's going to be bringing some rain south of about Christchurch."
Ms Flynn said southerners won't be the only ones affected by the bad weather, as it will make its way up the country.
"The likes of Blenheim, Kaikōura, the northern part of the South Island will still be getting up to the high 20s, early 30s on Sunday.
"But then on Monday will obviously be a bit cooler as that cold front makes its way to them."
But Auckland will be spared the worst of it.
"Those fronts generally weaken as they go north, which means that Auckland won't be seeing too much rain as we head into the new week," Ms Flynn said.
"They may just get some cloud as that front heads northwards."
Gisborne will be the hottest part of the country, expected to reach 33degC on Sunday, before dipping to 29degC on Monday.