Monkey Mia weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Monkey Mia in September based on long-term weather averages. There is usually 4 days with some rainfall and 6 mm of average monthly rainfall in September.

  • 25°C maximum daytime temperature in September in Monkey Mia25
    25°C max day temperature
  • 10 hours of sunshine per day
  • 4 days with some rainfall in September in Monkey Mia4
    4 days with some rainfall
  • 12°C minimum night-time temperature in September in Monkey Mia12
    12°C min night temperature
  • 12 hours of daylight per day in September in Monkey Mia12
    12 hours of daylight per day
  • No heat & humidity in September in Monkey Mia0
    No heat & humidity
  • 6 mm monthly rainfall in September in Monkey Mia6
    6 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Monkey Mia8
    8 (Very High) UV index
  • 19°C sea temperature in September in Monkey Mia19
    19°C sea temperature

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The September weather guide for Western Australia (Monkey Mia) 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 Monkey Mia in September?

Daytime temperatures usually reach 25°C in Monkey Mia in September with no heat and humidity, falling to 12°C at night.

How sunny is it in Monkey Mia in September?

There are normally 10 hours of bright sunshine each day in Monkey Mia in September - that's 86% of daylight hours.

How warm is the sea around Monkey Mia in September?

The average sea temperature around Monkey Mia in September is 19°C.

Does it ever rain in Monkey Mia in September?

There are usually 4 days with some rain in Monkey Mia in September and the average monthly rainfall is 6mm.

Monkey Mia September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:38 18:13
Monday, 15th September 2025 06:23 18:18
Tuesday, 30th September 2025 06:06 18:25

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