Dunedin weather in September 2025

Expect 12°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Dunedin in September. Check more long-term weather averages for Dunedin in September before you book your next holiday to New Zealand in 2025/2026.

  • 12°C maximum daytime temperature in September in Dunedin12
    12°C max day temperature
  • 4 hours of sunshine per day
  • 15 days with some rainfall in September in Dunedin15
    15 days with some rainfall
  • 5°C minimum night-time temperature in September in Dunedin5
    5°C min night temperature
  • 12 hours of daylight per day in September in Dunedin12
    12 hours of daylight per day
  • No heat & humidity in September in Dunedin0
    No heat & humidity
  • 42 mm monthly rainfall in September in Dunedin42
    42 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Dunedin3
    3 (Moderate) UV index
  • 10°C sea temperature in September in Dunedin10
    10°C sea temperature

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The September weather guide for New Zealand (Dunedin) 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 Dunedin in September?

Daytime temperatures usually reach 12°C in Dunedin in September, falling to 5°C at night.

How sunny is it in Dunedin in September?

There are normally 4 hours of bright sunshine each day in Dunedin in September - that's 37% of daylight hours.

Is the sea cold around Dunedin in September?

The average sea temperature around Dunedin in September is 10°C.

Does it rain in Dunedin in September?

There are usually 15 days with some rain in Dunedin in September and the average monthly rainfall is 42mm.

Dunedin September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 07:08 18:09
Monday, 15th September 2025 06:41 18:26
Tuesday, 30th September 2025 06:12 18:45

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