There were calls from the fire service yesterday to revellers asking them to leave personal fireworks at home in favour of public displays - with much of the country weathering dry conditions.
But people in parched parts of the South Island were letting off fire crackers overnight.
Their actions saw southern fire crews get called out to a large number of incidents during the night.
Fire and Emergency shift manager Riwai Grace said: "I can't believe people so idiotic in these dry conditions doing that, because they don't know where these fireworks are going to end up and how quickly these fires can actually spread."
Grace is describing the behaviour of those responsible as idiotic.
"Really asking people to use common sense. I know it's New Year's Eve and we like to celebrate things in our country, but how would you feel if you set off fireworks and you burnt your neighbour's house down?"
A fireworks event at drought-stricken Waiheke Island was cancelled yesterday following concern by residents.