It was a chilly start to the day in Rotorua where residents experienced their first real frost of the year this morning - but temperatures will warm up a little before winter really hits.
MetService communications meteorologist Lewis Ferris said there was a weak frost on April 18, but thismorning was "more convincing".
"Another cool start is expected tomorrow with a low of 4C, warmer than the -0.2C low today, but we're now on the warming side thanks to a shift in wind flow, with lows around the 6 to 8C mark," he said.
"Winter brings the risk of cool outbreaks from the south. Rotorua Airport is about 50mm below where it would usually be for this time of year but winter tends to be the wettest season."