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 this morning 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.