September weather forecast and climate
Brisbane, Australia

Sunset in Brisbane, Australia with a full view of the Brisbane River and cloudy evening skies
Sunset in Brisbane, Australia with a full view of the Brisbane River and cloudy evening skies

What is the temperature in September in Brisbane?

The average high-temperature, in September, in Brisbane, is 24.2°C (75.6°F), while the average low-temperature is 12.8°C (55°F).

How many days does it rain in September in Brisbane?

In Brisbane, in September, during 5.9 rainfall days, typically 32.2mm (1.3") of precipitation is accumulated.
Average temperature in September - Brisbane, Australia
  • Average high temperature in September: 24.2°C

Warmest months (with the highest average high temperature) are January and February (29°C).
The month with the lowest average high temperature is July (20.9°C).

  • Average low temperature in September: 12.8°C

The month with the highest average low temperature is January (21.2°C).
The coldest month (with the lowest average low temperature) is July (9°C).

Average humidity in September - Brisbane, Australia
  • Average humidity in September: 55%

Months with the highest relative humidity are January and February (63%).
Months with the lowest relative humidity are July and August (50%).

Average rainfall in September - Brisbane, Australia
  • Average rainfall in September: 32.2mm

The wettest month (with the highest rainfall) is January (139.3mm).
The driest month (with the lowest rainfall) is July (30.2mm).

Average rainfall days in September - Brisbane, Australia
  • Average rainfall days in September: 5.9 days

The month with the highest number of rainy days is March (13.1 days).
The month with the lowest number of rainy days is August (5.2 days).

Average sea temperature in September - Brisbane, Australia
  • Average sea temperature in September: 22°C

The best month for swimming (with the highest average sea temperature) is February (27°C).
Coldest months (with the lowest average sea temperature) are July and August (21°C).

Average daylight in September / Average sunshine in September - Brisbane, Australia
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 13.9h).
The month with shortest days is June (Average daylight: 10.4h).

  • Average sunshine in September: 9h

Months with most sunshine are September and November (Average sunshine: 9h).
The month with least sunshine is June (Average sunshine: 6.6h).

Average UV index in September - Brisbane, Australia
  • Average UV index in September: 8

Months with the highest UV index are January, February and December (UV index 12).
Months with the lowest UV index are June and July (UV index 4).

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