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Weather in New Zealand in September – is it worth traveling to?

Is the weather pleasant in New Zealand? See historical weather data for September to see if it meets your needs.
Check flight prices to New Zealand on Avionero:
September

Is the weather good in New Zealand in September 2024?

OK Weather
Mild
☁️
Cloudy

For the past few decades, the average daily temperatures in New Zealand during September have been around +16°C.

In New Zealand the temperature rarely varies more than seven degrees between the different parts with the highest temperature +16°C in Auckland to +15°C in Christchurch. So you should be able to pack for similar conditions wherever you go in the country.

Temperature, wind and humidity in September

Average
Auckland
Christchurch
☀️
+16°C
Avg. max. temperature
-4°C
Min.
+25°C
Max.
78 mm
Total precipitation
77%
Avg. humidity
4 m/s
Avg. wind
5 ☀️
Sunny Days
18 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: New Zealand has OK weather in September.
New Zealand in September – what city is the…
  • rainiest? Auckland, with an average of 4 mm of rain and humidity of 79%;
  • warmest? Auckland, with daytime temperatures averaging +16°C;
  • windiest? Auckland, with an average of 4 m/s;
  • coolest? Christchurch, with daytime temperatures averaging +15°C;

How good is the weather in New Zealand in September?

During September, the New Zealand usually offers good weather overall, with air pressure around 1012 HPa. This means you may encounter some rainy weather too – September brings around 76 mm of rain and winds averaging 3 m/s. Humidity ranges between 74% in Christchurch and 79% in Auckland. In general, it tends to be more humid near the sea and lake and drier inland.

How warm is it in New Zealand during September?

The weather is usually pretty good this time of year, with daytime temperatures around +15°C.

This is how hot it usually is in September

The average daily temperatures above don't tell you everything about how hot it can be in New Zealand. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for September:
Average
Auckland
Christchurch
  • Average maximum temperature for the month: +15°C;
  • Average minimum temperature for the month: +9°C;
  • Highest monthly temperature: +16°C;
  • Lowest monthly temperature: +8°C;

Monthly temperatures:

Average
Auckland
Christchurch
  • Warmest: February with an average +23°C during the day;
  • Coldest: July with an average +13°C of the day;
  • Hottest month in hottest city: February in Auckland;
  • Coldest month in coolest city: July in Christchurch;

Winds in New Zealand during September

Wind speed in New Zealand in September based on historical data:
Average
Auckland
Christchurch

September tends to offer light winds averaging 4 m/s. However, coastal cities may experience breezes during the mornings and afternoons.

Comparison between cities in September:

  • Highest average wind speed: Christchurch with 3 m/s;
  • Lowest average wind speed: Auckland with 3 m/s;
  • Windiest day of the month: Auckland with 5 m/s;
  • The least windy day of the month: Christchurch with 3 m/s;

Humidity and precipitation in New Zealand in September

Amount of rainfall in mm during September in New Zealand based on historical data:
Average
Auckland
Christchurch
September tends to be an extremely humid month with 76% humidity and 76 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.

Comparison between cities in September:

Average
Auckland
Christchurch
  • Highest average rainfall: Auckland with 110 mm;
  • Lowest average rainfall: Christchurch with 46 mm;
  • Most number of rainy days: Auckland with 11 rainy days;
  • Least number of rainy days: Christchurch with 5 rainy days;
  • Highest risk of rain during the day: Auckland with 37%;
  • Least risk of rain during the day: Christchurch with 17%;
  • Highest average humidity: Auckland with 79%;
  • Lowest average humidity: Christchurch with 74%;

Tips for traveling to New Zealand in September

Looking for some tips for traveling to the sun, snow, or whatever you're aiming for New Zealand? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.

Here is some advice on what to pack and what kind of activities you can do in the New Zealand based on the weather that September is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.

Cloudy, mild weather with light winds and very high humidity in September
Avionero

Pack right for September

The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
  • Cool weather is between warm and cold. This means you can bring long pants and/or a longer skirt and an extra sweater. Be aware that cool days can alternate with cold nights - it may be wise to also pack a hat, gloves and a scarf.
  • Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
  • High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.

FAQ

Frequently asked questions about the weather in New Zealand in September:

What can you do outside when it's warm in New Zealand?

Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.

Is September a good time to visit New Zealand?

It’s always a good time to visit New Zealand, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Monthly weather in New Zealand

Source of the data

For this page, we’ve looked at the typical weather in New Zealand, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.