Darwin weather in September 2025

Expect 33°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Darwin in September. Check more long-term weather averages for Darwin in September before you book your next holiday to Northern Territory in 2025/2026.

  • 33°C maximum daytime temperature in September in Darwin33
    33°C max day temperature
  • 10 hours of sunshine per day
  • 3 days with some rainfall in September in Darwin3
    3 days with some rainfall
  • 23°C minimum night-time temperature in September in Darwin23
    23°C min night temperature
  • 12 hours of daylight per day in September in Darwin12
    12 hours of daylight per day
  • High heat & humidity in September in DarwinH
    High heat & humidity
  • 15 mm monthly rainfall in September in Darwin15
    15 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Darwin11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Darwin27
    27°C sea temperature

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The September weather guide for Northern Territory (Darwin) 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 hot is it in Darwin in September?

Daytime temperatures usually reach 33°C in Darwin in September with high heat and humidity, falling to 23°C at night.

How sunny is it in Darwin in September?

There are normally 10 hours of bright sunshine each day in Darwin in September - that's 82% of daylight hours.

How warm is the sea around Darwin in September?

The average sea temperature around Darwin in September is 27°C.

Does it ever rain in Darwin in September?

There are usually 3 days with some rain in Darwin in September and the average monthly rainfall is 15mm.

Darwin September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:51 18:43
Monday, 15th September 2025 06:41 18:43
Tuesday, 30th September 2025 06:31 18:43

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