Aucklanders should prepare themselves for some of the hottest temperatures the city has seen in years as the rest of the country also scorches.
While it may not be the 37degC stunner the Hawke's Bay had on Monday, Auckland is set to hit 30degC on Tuesday - one of the hottest highs the city has seen in at least two years, according to MetService data.
- Weather: New Zealand's hottest areas hit 37degC
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The previous high recorded at MetService's main Auckland weather station at Auckland Airport was in January 2018 when the city reached 29degC.
At Whangaparaoa, in the north of Auckland, the mercury hit 31degC in February 2017, while the Ardmore Aerodrome near Papakura reached 30degC also in January last year.
MetService says that as a result of an easterly onshore flow, central and western spots across the country will heat up a lot compared to Monday - including Levin which may be 12degC warmer.
Waikato is also expected to be in the firing line, with WeatherWatch predicting temperatures nearing the mid-thirties on Tuesday afternoon.
Eastern areas of the country, which bore the brunt of the heat on Monday, will be up to eight or nine degrees cooler thanks to a sea breeze.
National emergency concerns
Earlier on Tuesday, Alistair Humphrey, a Canterbury District Health Board medical officer, said that the weather was at a dangerous level and there were concerns about a national emergency.
He said elderly and young children were particularly vulnerable, and Kiwis should make sure they are stocked up on fluids all day long and keep the windows open.
"Elderly people, who don't regulate heat quite as well, [are coming into emergency departments] dizzy, not having drunk enough, not having being wearing a hat," he told The AM Show.
Mr Humphrey said that all heat waves are dangerous and can lead to dizziness and confusion.
"Every emergency department, every hospital, has its own plan for excess casualties coming in for whatever cause... [but] we are hoping people heed the warnings".
A new all-time temperature record was also set in Richmond on Monday.
"The minimum temperature in Richmond only reached 24.3degC this morning!" NIWA tweeted.
"That is a new ALL-TIME warm minimum temperature record for the Wider Nelson region. Records began there 157 years ago! The previous record was 23.7degC."
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