September weather forecast
Brisbane, Australia

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

Weather in September

Brisbane welcomes the spring season wholeheartedly with a considerable rise in temperature in September. A significant downturn in relative humidity is noted, diminishing the moisture content in the atmosphere. The city promotes a drier climate when compared to past months. Daylight duration observes an increase, resulting in longer, sunny days. The delightful punctuation of spring marks September in Brisbane city, rendering vivid colors to its natural beauty.

Temperature

September in Brisbane denotes a minimal variation in the average high-temperature to a still agreeable 22.9°C (73.2°F) from August's 20.8°C (69.4°F). Brisbane records a steady low-temperature average of 15.3°C (59.5°F) during September.

Humidity

In Brisbane, the average relative humidity in September is 69%.

Rainfall

September is the month with the least rainfall in Brisbane, Australia. Rain falls for 11.5 days and accumulates 26mm (1.02") of precipitation.

Sea temperature

In Brisbane, in September, the average water temperature is 22°C (71.6°F).
Note: Imagine a swim in 22°C (71.6°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

The average length of the day in September is 11h and 56min.
On the first day of the month, sunrise is at 6:01 am and sunset at 5:34 pm. On the last day of September, sunrise is at 5:27 am and sunset at 5:47 pm AEST.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September in Brisbane is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

Frequently asked questions

What is the temperature in September in Brisbane?

Brisbane in September has an average high-temperature of 22.9°C (73.2°F) and an average low-temperature of 15.3°C (59.5°F). In February, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 31°C (87.8°F).

What is the average humidity in September in Brisbane?

In September, the average relative humidity is 69%.

What is the driest month in Brisbane?

The month with the least rainfall in Brisbane is September, when the rain falls for 11.5 days and typically collects 26mm (1.02") of precipitation.

How many days does it rain in September in Brisbane?

In Brisbane, during September, the rain falls for 11.5 days and regularly aggregates up to 26mm (1.02") of precipitation.

How warm is the water in September in Brisbane?

In September, the average sea temperature in Brisbane, Australia, is 22°C (71.6°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22°C (71.6°F) water may be enjoyable.

What is the average length of the day in September in Brisbane?

In September, the average day length is 11h and 56min.

When is the sunrise / sunset in September in Brisbane?

In September, on the first day of the month, sunrise is at 6:01 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 5:47 pm AEST.

How many hours of sunshine does Brisbane have in September?

In September, the average sunshine duration in Brisbane, Australia, is 8.8h.

How high is the UV index in September in Brisbane?

In Brisbane, Australia, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.

Average temperature in September
Brisbane, Australia

Average temperature in September - Brisbane, Australia
  • Average high temperature in September: 22.9°C

The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (19.4°C).

  • Average low temperature in September: 15.3°C

The month with the highest average low temperature is January (22.1°C).
The coldest month (with the lowest average low temperature) is July (12.7°C).

Average pressure in September
Brisbane, Australia

Average pressure in September - Brisbane, Australia
  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).

Average wind speed in September
Brisbane, Australia

Average wind speed in September - Brisbane, Australia
  • Average wind speed in September: 14.1km/h

The windiest month (with the highest average wind speed) is February (16.4km/h).
The calmest months (with the lowest average wind speed) are May and August (13.7km/h).

Average humidity in September
Brisbane, Australia

Average humidity in September - Brisbane, Australia
  • Average humidity in September: 69%

The months with the highest relative humidity are February and March (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Brisbane, Australia

Average rainfall in September - Brisbane, Australia
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is March (89mm).
The driest month (with the least rainfall) is September (26mm).

Average rainfall days in September
Brisbane, Australia

Average rainfall days in September - Brisbane, Australia
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (9.5 days).

Average sea temperature in September
Brisbane, Australia

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).
The 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 / Average sunshine in September - Brisbane, Australia
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is November (Average sunshine: 10h and 36min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).

Average sunshine days in September
Brisbane, Australia

Average sunshine days in September - Brisbane, Australia
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is March (7.9 days).

Average UV index in September
Brisbane, Australia

Average UV index in September - Brisbane, Australia
  • Average UV index in September: 5

The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The month with the lowest UV index is June (UV index 4).

Average cloud cover in September
Brisbane, Australia

Average cloud cover in September - Brisbane, Australia
  • Average cloud cover in September: 22

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Brisbane, Australia

Average visibility in September - Brisbane, Australia
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Brisbane, Australia

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