Climate scientists expect the warm weather to continue for the next three months, with a good chance of average or above average temperatures from October to December.
But the National Institute of Water and Atmospheric Research (NIWA) says despite the warmer weather, frosts may still occur in some areas.
NIWA says there's a 50% chance temperatures will be above average in the east of the North Island and the north of the South Island over the period.
The institute says rainfall is most likely to be at, or near, normal levels around the country, although there could be more rain in the north of the North Island.
