New Zealand weather

Our guide to the weather in New Zealand during September

14

Average high

3

UV Index

138mm

Monthly rainfall

79%

Humidity

We've looked at the most up-to-date weather data for New Zealand, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about New Zealand weather in September.

What's the temperature like in New Zealand during September?

The temperature reaches around 14℃ during the daytime in September, falling away to 4℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in New Zealand during September?

On average, there will be 7 rainy days during the month, amounting to 138.0mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in New Zealand during September?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate air temperatures, any breeze will feel cool.

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Weather in New Zealand

Our month-by-month guide to the weather and climate in New Zealand

21.7

New Zealand weather in

January
21.5

New Zealand weather in

February
19.9

New Zealand weather in

March
17.0

New Zealand weather in

April
14.3

New Zealand weather in

May
12.0

New Zealand weather in

June
11.2

New Zealand weather in

July
12.3

New Zealand weather in

August
13.7

New Zealand weather in

September
15.6

New Zealand weather in

October
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New Zealand weather in

November
19.8

New Zealand weather in

December