New Zealand has a temperate climate in the South island and sub-tropical climate in the North Island. Due to the nature of its terrain, prevailing winds (the Roaring Forties) and length of the country, sharp contrasts can exist between regions.

New Zealand’s weather is highly changeable.

During summer and early autumn months, from about December to April, the westerly winds tend to move south giving more settled weather. Random weather systems from the tropics can make their presence felt, mainly over the North Island, with a period of warm wet windy weather.

In winter, from May to August, the weather tends to be more changeable. Cold fronts often bring a period of rain to western areas, followed by a cold wind from the south bringing snow to the mountains. When the weather turns cold and wet in the east, to the west of the mountains it will be fantastic. At this time of the year it is not uncommon for high pressure systems and clear skies to park over the whole country for long periods bringing crisp frosty nights and mornings followed by cool sunny days.

In spring, from August to November, the westerly winds are typically at their strongest. It tends to rain more in western areas, and especially on the South Island, while in the east, warm dry winds can give great weather.

Mean temperatures range from 8°C in the South Island to 16 °C in the North Island. January and February are the warmest months, July the coldest.

Subtropical conditions are experienced in Northland. Maximum daytime temperatures sometimes exceed 30°C and only fall below 0°C in the elevated inland regions.