 The two largest cities on the South Island, Christchurch and Dunedin, have mean yearly maxima of and and yearly mean minima of and respectively.Daily maximum temperatures are normally in the mid to low 20s (°C) over most of the country.They are higher in northern, eastern and interior part of the country; Hastings is the warmest city on average with 25.5 °C followed by Gisborne with 24.9 °C and Napier with 24.5 °C.