Today's frosty start is due to continue tomorrow with below-zero temperatures for many areas.
This morning's lows were at Lake Pukaki with -4.7C and Timaru Airport on -3.2C, MetService said.
A chilly start for most of Aotearoa. The reported temperature at Lake Pukaki is -4.7°C and -3.2°C at Timaru Airport. Another cold one tonight so chuck another blanket on the bed! ^Lewis pic.twitter.com/WVUDrsxjrV— MetService (@MetService) June 17, 2019
Temperatures are expected to be chilly again overnight into early Wednesday, with many South Island centres below zero.
MetService is forecasting -3C in Timaru, Queenstown and Alexandra, and -2C in Blenheim and Ashburton, and -1C in Invercargill, Wanaka and Christchurch.
In the central North Island, Taumaranui and Taupo are due to fall to -2C overnight.