Acquaint yourself with New Zealand's seasons. Spring starts in September, summer in December, fall in March and winter in June.
Prepare for warm summers and mild winters. Layer with long shorts, khakis, simple cotton dresses, skirts, T-shirts and sweaters during the warmer months. A jacket is necessary for the fall, while a coat is your best bet for winter.
Check the regional temperatures if your plans include the South Island. If you plan to visit its noted mountain ranges, cold weather clothes are a must - the higher altitudes bring much cooler temperatures.
Pack sandals and a pair of walking shoes. You'll need hiking boots if you plan to take on any of the mountainous terrain.
Take a swimsuit, sunglasses and sunscreen if you'll be visiting any of the country's many beaches.
Bring a light raincoat and an umbrella, as showers are possible any time of year.
Remember an electric converter and adapter.