Auckland weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Auckland in September. Check more long-term weather averages for Auckland in September before you book your next holiday to New Zealand in 2025/2026.

  • 16°C maximum daytime temperature in September in Auckland16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in September in Auckland18
    18 days with some rainfall
  • 9°C minimum night-time temperature in September in Auckland9
    9°C min night temperature
  • 12 hours of daylight per day in September in Auckland12
    12 hours of daylight per day
  • No heat & humidity in September in Auckland0
    No heat & humidity
  • 100 mm monthly rainfall in September in Auckland100
    100 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Auckland5
    5 (Moderate) UV index
  • 14°C sea temperature in September in Auckland14
    14°C sea temperature

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The September weather guide for New Zealand (Auckland) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Auckland in September?

Daytime temperatures usually reach 16°C in Auckland in September, falling to 9°C at night.

How sunny is it in Auckland in September?

There are normally 5 hours of bright sunshine each day in Auckland in September - that's 42% of daylight hours.

How warm is the sea around Auckland in September?

The average sea temperature around Auckland in September is 14°C.

Does it rain in Auckland in September?

There are usually 18 days with some rain in Auckland in September and the average monthly rainfall is 100mm.

Auckland September sunrise & sunset times

Browse the sunrise and sunset times for Auckland in September 2025. Select a month to view Auckland sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:42 18:00
Monday, 15th September 2025 06:21 18:12
Tuesday, 30th September 2025 05:59 18:24

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