Northern Territory weather in September 2025

Expect daytime maximum temperatures of 33°C in Northern Territory in September and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 33°C maximum daytime temperature in September in Northern Territory (Darwin)33
    33°C max day temperature
  • 10 hours of sunshine per day
  • 3 days with some rainfall in September in Northern Territory (Darwin)3
    3 days with some rainfall
  • 23°C minimum night-time temperature in September in Northern Territory (Darwin)23
    23°C min night temperature
  • 12 hours of daylight per day in September in Northern Territory (Darwin)12
    12 hours of daylight per day
  • High heat & humidity in September in Northern Territory (Darwin)H
    High heat & humidity
  • 15 mm monthly rainfall in September in Northern Territory (Darwin)15
    15 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Northern Territory (Darwin)11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Northern Territory (Darwin)27
    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.

Top Northern Territory destinations

Below are average maximum temperatures at popular countries, regions and places in the Northern Territory in September. Select a holiday destination to see more weather parameters.

All Northern Territory destinations

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

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How hot is it in the Northern Territory in September?

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

How sunny is it in the Northern Territory in September?

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

How warm is the sea around the Northern Territory in September?

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

Does it ever rain in the Northern Territory in September?

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

Northern Territory September sunrise & sunset times

Browse the sunrise and sunset times for Northern Territory in September 2025. Select a month to view Northern Territory sunrise and sunset times for the next 12 months. The Northern Territory sunrise and sunset times shown below are for Darwin.

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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