8.44 New Zealand Weather

New Zealand’s weather is strongly influenced by its latitude, oceanic surroundings, and topography.

These factors produce a generally temperate, maritime climate, with large local variations caused by mountains and wind direction.

8.44.2 Describe how the following factors determine the general weather features found around New Zealand:

(a) latitude;

New Zealand lies between approximately 34°S and 47°S, in the temperate latitudes.

This means New Zealand is affected by:

• mid-latitude weather systems
• frequent fronts and depressions
• strong westerly airflow
• seasonal temperature changes

General Effect

• The north of New Zealand is generally warmer.
• The south is generally cooler.

However, local weather is also strongly affected by the surrounding ocean and terrain.

(b) oceanic surroundings;

New Zealand is surrounded by ocean, so it has a maritime climate.

The ocean:

• moderates temperature, giving milder winters and cooler summers
• provides a constant source of moisture
• allows fronts and depressions to bring cloud, rain and wind
• helps produce rapid weather changes