The city reportedly got as hot as 31C yesterday, according to a local weather observer.
Last night's TVNZ weather bulletin reported the city's Sunday temperature at 24C, however, Springfield Weather Observations scientist Brian Holden has called this "nonsense" as he recorded 31C on his property.
Holden said yesterday was one of the hottest temperatures that many people would have felt in November for a long time.
Just one degree more and the city would have broken the record for hottest November day since 1995, he said.
He said temperatures over 30C were "extremely rare" for this time of year.