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New Zealand weather in September

New Zealand in September averages 11°C (52°F), 80 mm of rain and 4.9 hours of sun a day.

Of the twelve months in New Zealand, September is the fourth coldest, the sixth driest and the fourth dullest.

New Zealand
Average temp
11°C (52°F)

7–15°C · 45–58°F

Rainfall
80 mm

Showers likely

Sunshine
4.9 h

hours per day

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What is New Zealand like in September?

Daytime

Days are cool.

Rain

Some rain is likely; pack for showers.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for New Zealand in September?

  • A light rain jacket

    About 80 mm falls this month — showers rather than washouts.

  • A warm mid-layer

    Nights drop to around 7°C (45°F).

September compared with August and October

September in New Zealand is 1.5°C warmer than August and about as wet as it, which averages 10°C (49°F).

September in New Zealand is 1.6°C cooler than October and about as wet as it, which averages 13°C (55°F).

Daylight in New Zealand in September

On 15 September the sun is up for 11 hours 48 minutes in New Zealand, rising about 06:22 and setting about 18:10 local time.

September ends 1 hour 18 minutes longer than it begins, so the last week of the month is a different length of day from the first.

That is 3 hours 20 minutes short of December, the longest-lit month here.

New Zealand weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How September compares with the rest of the year

September is highlighted. Every other month links to its own page.

New Zealand weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January17°C / 63°F57 mm
February17°C / 63°F55 mm
March16°C / 60°F77 mm
April14°C / 56°F83 mm
May12°C / 54°F98 mm
June10°C / 50°F105 mm
July9°C / 48°F116 mm
August10°C / 49°F87 mm
September11°C / 52°F80 mm
October13°C / 55°F86 mm
November14°C / 57°F73 mm
December16°C / 61°F71 mm

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FAQs about New Zealand in September

September climate averages for New Zealand, 1991–2020.

New Zealand averages 11°C (52°F) in September, ranging from about 7°C (45°F) at night to 15°C (58°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Some. About 80 mm falls across September, enough to need a light jacket but not enough to reshape a trip.

No. September averages 11°C (52°F) against 13°C (55°F) in October — 1.6°C cooler.

September is 1.5°C warmer than August, and about as wet.

It is outside the easiest window. The most comfortable stretch here is November to April; September sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.

About 4.9 hours of sun a day on the 1991–2020 average.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 11 hours 48 minutes of daylight in mid-September, against 15 hours 8 minutes in December and 9 hours 12 minutes in June.

On 15 September, sunrise is about 06:22 and sunset about 18:10 local time. Both shift across the month — the month ends 1 hour 18 minutes longer than it starts.