Greater Brisbane in September 2021: rainfall and temperatures close to average overall

Rainfall was close to, or slightly below, average across Greater Brisbane in September.
Both mean maximum and mean minimum temperatures were within one degree of their long-term average.

Close to average rainfall

  • Rainfall was close to average, or slightly below average across Greater Brisbane.
  • At the start of the month, showers developed over Greater Brisbane, with moderate falls at some sites on the 2nd, followed by several days of mostly light rainfall totals.
  • Showers and thunderstorms brought light to moderate totals across Greater Brisbane on the 27th and 28th.
  • At the end of the month, a surface and upper trough triggered showers and thunderstorms over Greater Brisbane. Thunderstorms developed on the 30th, with moderate falls over the south-east on 1 October.

Temperatures close to average

  • Mean maximum temperatures were within a degree of the long-term average at all Greater Brisbane sites.
  • Warmer than usual days were experienced several times during the month. The warmest day was 33.3 °C at University of Queensland Gatton on the 25th.
  • Mean minimum temperatures were within a degree of their long-term average.
  • Minimum temperatures were warmer than usual at the start of the month, with thick cloud keeping nights warm. Nights were warmer than usual at the end of the month.

Brisbane

  • Total rainfall for Brisbane was 10.8 mm, which is 41% of the long-term average of 26.6 mm.
  • The mean daily maximum temperature for Brisbane was 25.2 °C, which is 0.5 °C below the long-term average of 25.7 °C.
  • The warmest day was 30.1 °C on the 10th, and the coolest day was on the 27th when the temperature reached 19.8 °C.
  • The mean daily minimum temperature for Brisbane was 13.7 °C, which is 0.2 °C below the long-term average of 13.9 °C
  • The coldest morning was 9.8 °C on the 8th, and the warmest morning was on the 30th when the minimum temperature was 17.1 °C.

Further information

Media
(03) 9669 4057

Extremes in September 2021
Hottest day 33.3°C at University of Queensland Gatton on the 25th
Warmest days on average 26.5°C at Amberley AMO
Coolest days on average 22.4°C at Cape Moreton Lighthouse
Coldest day 19.3°C at Cape Moreton Lighthouse on the 6th
19.3°C at Cape Moreton Lighthouse on the 22nd
Coldest night 0.6°C at Amberley AMO on the 8th
Coolest nights on average 7.9°C at Canungra (Defence)
Warmest nights on average 16.6°C at Cape Moreton Lighthouse
Warmest night 19.6°C at Cape Moreton Lighthouse on the 13th
Warmest on average overall 19.5°C at Cape Moreton Lighthouse
Coolest on average overall 16.1°C at Canungra (Defence)
Wettest overall 44.4 mm at Mt Tamborine Fern St
Wettest day 32.0 mm at Mt Tamborine Fern St on the 2nd
Strongest wind gust 78 km/h at Cape Moreton Lighthouse on the 26th




Summary statistics for September 2021

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2021
Diff
from
average
Highest for
September
2021
Mean for
September
2021
Diff
from
average
Lowest for
September
2021
Total for
September
2021
Average
for
September
Rank of
September
2021
Fraction of
September
average
Amberley AMO 26.5 +0.8 32.8 25th 8.6 -0.9 0.6 8th 19.6 32.6 average 60%
Archerfield Airport 25.8 +0.5 31.2 25th 11.5 +0.3 6.5 8th 10.2 34.3 low 30%
Beaudesert Drumley Street 25.9 -0.5 31.5 13th 9.7 -0.3 3.6 15th 19.0 33.3 average 57%
Beerburrum Forest Station 25.6 -0.4 32.8 13th 11.5 -0.5 5.9 15th 10.8 45.9 low 24%
Brisbane 25.2 -0.5 30.1 10th 13.7 -0.2 9.8 8th 10.8 26.6 low 41%
Brisbane Aero 24.0 -0.2 26.6 19th 13.0 +0.1 8.0 15th 14.8 31.1 average 48%
Canungra (Defence) 24.4   30.1 25th 7.9   1.4 15th 29.4


Cape Moreton Lighthouse 22.4 +0.8 24.2 25th 16.6 +0.6 11.9 22nd 18.0 63.4 low 28%
Greenbank (Defence) 26.1   32.5 25th 8.8   2.0 22nd 15.2


Logan City Water Treatment Plant 25.4 +0.2 31.2 25th 12.4 -0.2 7.6 22nd 17.4 38.2 low 46%
Redcliffe 23.8 -0.3 28.4 13th 14.2 -0.3 9.6 15th 25.2 36.3 average 69%
Redland (Alexandra Hills) 23.6   27.4 10th 13.0   7.6 22nd 15.4


University of Queensland Gatton 26.3 +0.7 33.3 25th 9.3 -0.2 2.4 8th 12.2 34.4 low 35%

Daily maximum temperatures for September 2021

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Amberley AMO 28.2 24.8 24.7 25.3 23.7 24.2 24.0 25.6 26.2 30.5 29.4 28.9 32.7 22.7 24.9 24.9 25.6 28.1 30.1 31.8 24.3 24.2 26.7 30.1 32.8 27.2 20.1 22.3 22.1 27.9
Archerfield Airport 28.2 24.4 25.2 25.1 23.7 24.3 23.6 24.5 25.2 30.2 27.3 27.1 30.2 22.6 24.8 24.5 25.1 25.8 29.2 28.0 25.4 24.3 26.0 29.2 31.2 25.8 19.9 22.6 24.0 26.6
Beaudesert Drumley Street 28.6 24.1 24.3 24.4 23.7 24.1 23.4 25.3 25.9 30.7 29.3 28.0 31.5 21.9 23.6 23.7 25.1 27.0 29.6 29.8 24.1 23.1 26.2 29.2 31.0 26.0 21.8 22.8 22.1 26.6
Beerburrum Forest Station 26.5 23.7 24.2 22.7 25.5 23.1 23.7 23.4 24.3 29.9 26.9 27.8 32.8 23.3 24.0 23.4 24.2 26.6 28.8 29.2 25.6 23.2 25.6 29.4 30.8 25.4 19.6 21.4 24.8 26.7
Brisbane 26.8 23.7 24.5 24.3 24.4 23.8 24.2 23.9 25.0 30.1 25.9 26.1 28.9 22.5 24.9 24.1 24.8 25.2 28.2 26.9 24.7

27.0 28.8 26.0 19.8 21.8 23.6 26.7
Brisbane Aero 24.7 22.9 23.6 23.8 24.2 22.4 23.3 22.8 23.6 26.2 23.8 25.0 26.5 23.2 22.4 22.7 23.5 23.9 26.6 24.9 25.7 21.8 24.6 25.0 26.1 24.3 20.8 22.2 23.9 25.1
Canungra (Defence) 26.3 22.4 22.6 21.6 22.6 22.7 22.7 23.3 24.6 29.5 27.9 26.3 30.1 20.9 23.2 22.6 23.7 25.5 26.6 28.1 23.6 22.0 24.7 27.6 30.1 24.3 20.1 22.1 21.0 24.5
Cape Moreton Lighthouse 24.2 22.2 22.9 22.9 22.6 19.3 19.8 21.8 24.0 23.3 22.6 22.9 23.7 20.7 19.7 20.2 24.2 22.8 24.0 23.2 24.1 19.3 22.0 23.4 24.2 23.2 21.3 22.6 23.1 23.1
Greenbank (Defence) 28.5 23.9 24.4 25.2 23.5 24.6 23.9 24.9 25.9 30.1 29.4 27.9 31.9 22.3 24.5 24.5 25.1 27.1 29.1 29.2 24.8 24.0 26.9 29.4 32.5 25.7 20.2 23.2 22.7 27.0
Logan City Water Treatment Plant 26.9 23.4 23.6 22.9 24.0 24.1 23.8 24.0 25.4 29.8 27.0 26.2 31.0 22.8 24.8 22.9 24.5 25.4 27.8 27.5 25.9 22.9 26.0 29.0 31.2 25.4 21.5 22.0 22.5 26.5
Point Lookout





25.9 24.0 25.5




















Redcliffe 24.4 22.6 23.0 23.7 24.4 21.3 22.3 22.5 23.6 27.0 24.3 26.0 28.4 22.4 22.1 21.7 22.4 24.4 25.6 26.0 24.7 22.1 23.6 24.9 25.6 23.9 20.2 21.3 23.7 25.1
Redland (Alexandra Hills) 24.9 23.2 23.7 22.9 23.6 20.5 22.7 23.1 23.0 27.4 24.2 23.9 26.0 22.1 22.7 22.1 22.9 23.6 27.1 24.0 25.1 22.6 23.3 25.3 25.9 25.0 20.6 21.2 21.5 24.2
University of Queensland Gatton 27.4 25.0 24.3 25.8 22.8 23.8 24.9 24.6 25.4 30.2 29.9 29.5 32.0 22.0 25.6 24.4 25.2 28.7 30.8 32.6 21.4 23.6 26.0 30.2 33.3 27.4 20.4 21.5 22.4 27.0
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated,
and typically occurred in the afternoon of that day.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period


Daily minimum temperatures for September 2021

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Amberley AMO 13.5 15.6 11.5 9.3 10.8 6.6 3.5 0.6 6.2 5.9 5.5 6.8 10.2 5.7 1.7 4.8 6.9 7.7 12.2 12.1 15.7 2.7 3.9 6.3 8.1 10.5 14.9 13.7 9.4 14.3
Archerfield Airport 17.5 17.0 11.7 13.1 13.1 10.0 7.1 6.5 8.7 9.4 8.3 8.9 13.5 12.5 7.1 8.4 8.0 11.5 14.5 14.4 16.7 7.4 7.6 9.1 10.6 14.5 14.7 12.8 13.7 16.6
Beaudesert Drumley Street 13.1 17.0 12.1 11.7 12.8 7.1 5.6 3.7 6.8 6.5 5.5 7.4 10.3 10.4 3.6 8.9 7.2 10.7 12.4 12.3 15.2 5.0 3.9 6.5 9.2 12.0 13.8 12.4 12.3 15.6
Beerburrum Forest Station 12.5 14.5 14.1 11.9 12.4 10.4 7.3 6.1 10.3 9.7 9.7 9.6 17.6 11.6 5.9 7.9 10.7 9.0 14.6 12.8 18.2 7.6 7.9 9.5 10.8 14.3 15.3 14.4 12.4 14.7
Brisbane 16.9 16.4 15.2 14.4 15.0 11.1 10.8 9.8 12.3 12.1 12.3 12.0 14.7 14.2 10.6 11.4 12.0 13.5 15.5 15.2 16.9


12.1 16.6 15.2 13.9 13.0 17.1
Brisbane Aero 15.4 17.0 14.6 13.2 15.1 10.5 10.0 8.3 11.7 10.3 11.3 11.3 16.7 11.7 8.0 10.8 11.0 13.3 15.7 14.0 18.1 9.1 9.3 11.3 11.2 16.0 15.0 17.2 15.3 16.7
Canungra (Defence) 11.3 15.6 12.5 11.9 11.1 4.3 1.8 2.2 5.1 5.0 2.8 6.5 10.1 6.7 1.4 4.3 5.5 8.7 11.3 10.7 13.6 3.9 2.5 5.5 6.4 8.1 12.2 9.8 10.8 14.1
Cape Moreton Lighthouse 18.5 18.6 15.9 15.9 18.1 12.3 14.0 15.3 17.5 16.7 17.2 18.0 19.6 15.3 12.6 14.6 15.3 18.0 18.5 19.0 19.2 11.9 14.2 17.0 17.8 19.0 16.7 16.9 16.7 17.6
Greenbank (Defence) 16.0 16.1 12.2 11.5 12.4 6.2 3.3 3.1 5.8 5.2 4.9 7.4 11.0 8.0 3.1 4.8 5.5 8.6 12.6 11.4 15.0 2.0 3.6 5.8 8.0 11.7 13.2 10.3 10.4 15.3
Logan City Water Treatment Plant 15.6 16.6 14.7 14.9 14.4 10.5 8.0 7.7 10.5 11.0 9.9 12.5 15.2 13.5 9.8 9.8 10.4 11.7 16.3 14.1 15.5 7.6 8.9 11.2 12.5
14.9 13.0 13.1 17.2
Point Lookout 11.8





12.4 16.1 16.0



















Redcliffe 17.0 17.3 15.5 13.8 15.7 11.7 10.3 9.9 12.7 11.6 12.0 13.3 19.1 13.7 9.6 10.8 13.5 13.6 17.7 15.6 19.3 9.6 10.6 12.7 14.6 16.9 15.4 17.7 16.5 17.3
Redland (Alexandra Hills) 16.6 15.2 14.6 13.8 14.9 10.6 9.5 8.3 10.8 11.9 10.4 13.2 17.0 13.4 8.9 9.4 11.4 11.9 16.2 15.2 18.6 7.6 10.1 11.2 11.9 15.8 14.5 14.2 14.5 17.1
University of Queensland Gatton 10.2 14.7 10.2 10.5 10.9 9.4 5.3 2.4 7.2 7.0 7.6 6.0 10.9 10.3 6.3 5.9 8.1 7.0 11.4 10.4 14.6 7.6 4.2 6.0 7.9 11.8 13.9 13.9 12.3 14.8
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated,
and typically occurred that morning.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period


Daily rainfall for September 2021

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Alderley - 1.2 1.2 1.0 - 0.4 - - - - - - - 0.2 - - - - - - - - - - - - 0.4 0.4 - 2.6
Amberley AMO - 7.6 - 0.2 - - - - - - - - - - - 0.2 - - - - 1.2 - - - - - 9.2 - - 1.2
Archerfield Airport - 3.8 0.2 0.4 - - - - - - - - - - - - - - - - 1.0 - - - - - 0.4 - - 4.4
Beaudesert Drumley Street - 14.6 0.4 0.2 - 0.8 - - - - - - - - - - - - - - 0.4 - - - - - - - - 2.6
Beerburrum Forest Station - 0.2 4.2 1.2 - - - - - - - - - - - - - - - - - - - - - - 0.8 0.6 - 3.8
Blackbutt Post Office - - 0.5 - - - - - - - - - - 0.5 - - - - - - - - - - - - 1.0 2.0 - 7.0
Brisbane - 3.4 0.2 2.2 - 0.2 - - - - - - - 0.8 - - - - - - - -

- - 0.4 - 0.2 3.4
Brisbane Aero - 2.8 0.8 2.6 0.2 1.2 0.2 - - - - - - - - 0.2 - - - - - - - - - - 5.2 - - 1.6
Brisbane Botanic Gardens Mt Coot-Tha - 4.6 0.6 - - - - - - - - - - 2.0 - - - - - - - - - - ? ? 2.4 - - 3.4
Caloundra Airport - - 2.2 0.5 9.0 - - - - - - - - 0.8 - - - - - - - - - - - - 14.2 0.2 6.4
Canungra (Defence) - 16.8 0.2 2.6 0.2 2.0 - - - - - - - - - - - - - - 1.4 - - - - - 0.2 0.2 - 5.8
Capalaba Water Treat - - 4.3 - - - - - - - - - - 2.4 - - - - - - - - - - - - - - 7.3
Cape Moreton Lighthouse 0.2 - 1.0 5.0 - 1.0 - - - - - - - 7.2 - - - - - - - - - - - 0.4 0.2 - - 3.0
Carneys Creek The Ranch - 12.0 1.6 - 3.0 - - - - - - - - - - - - - - - 4.4 - - - - - - 2.0 - 10.6
Clontarf 0.2 - 6.0 1.0 - 2.6 - - - - - - - 2.4 - - - - - - - - - - - - 6.4 - 0.2 2.6
Dunwich - - - - - - - - - - - - - 6.0 - - - - - - - - - - ? ? 1.6 0.2 0.2
Esk Post Office - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3.8
Gatton Allan Street - - - - - - - - - - - - - - - - - - - - 3.0








Godwin Beach 0.2 - 1.4 3.4 1.6 0.8 - - - - - - - 3.4 - - - - - - - - - - - - 1.0 0.2 - 1.0
Greenbank (Defence) - 8.2 1.4 0.6 - - - - - - - - - - - - - - - - 1.4 - - - - - 1.8 - - 1.8
Greenbank Thompson Road - 6.0 1.2 0.6 - - - - - - - - - - - - - - - - 1.6 - - - - - 2.0 - - 2.6
Harrisville Mary Street - 11.4 0.1 - - - - - - - - - - - - - - - - - 3.0 - - - - - 21.2 0.1 - 2.8
Highvale - 10.4 1.6 2.6 - - - - - - - - - - - - - - - - 0.2 - - - - - 1.0 0.4 - 2.2
Kalbar State School - 10.5 - - - - - - - - - - - - - - - - - - - - - - - - - 3.2 - 3.0
Karalee - 2.9 0.2 0.8 - - - - - - - - - - - - - - -
2.8 - - - - - 2.2 0.1 - 3.8
Karragarra Island - 3.0 - - - - - - - - - - - - - - - - - - - - - - - - 6.4 - - 7.4
Landsborough - - 2.0 1.0 0.6 - - - - - - - - - - - - - - - - - - - - - 16.4 1.6 0.6 6.0
Lindfield - - 0.4 - - - - - - - - - - 0.2 - - - - - - - - - - - - - - - 2.2
Logan City Water Treatment Plant 0.2 5.5 0.6 0.6 - 0.4 - - - - - - - 0.1 - - - - - - 0.5 - - - 0.1 - 3.9 0.1 0.5 4.9
Lowood Don St 6.6 3.4 0.2 0.5 - - - - - - - - - - - - - - - - 6.2 - - - - - - - - 4.8
Manly Railway Station - - - - - 5.4 - - - - - - - - - - - - - - - - 0.8 - - - 1.4


Maroon Dam - 8.6 - - 0.2 - - - - - - - - - - - - - - - 9.4 - - - - - - 0.4 - 7.0
Mt Alford 0.5 4.8 - - - - - - - - - - - - - - - - - - 3.6 - - - - - - - - 4.8
Mt Tamborine Fern St - 32.0 1.8 4.4 - - - - - - - - - - - - - - - 0.4 - - - - - - 1.4 - - 4.4
Mt Tarampa 5.0 2.4 1.0 - - - - - - - - - - - - - - - - - 4.8 - - - - - - - - 5.2
Palen Creek Correctional - 8.5 1.0 - - 1.0 - - - - - - - - - - - - - - 5.5 0.5 - - - - 2.0 - - 14.0
Peachester - - 3.0 - 0.3 0.2























Point Lookout 10.2 ? ? ? ? ? ? 9.6 - -



















Redcliffe - 1.4
0.8 - 3.8 - - - - - - - 3.8 - - - - - - - - - - - - 12.6 - 0.2 2.6
Redland (Alexandra Hills) - 3.8 - 0.2 - 0.2 - - - - - - - 1.4 - - - - - - - - - - - - 3.8 - - 6.0
Regents Park - 6.0 - 0.6 - - - - - - - - - - - - - - - - 1.4 - - - - - 2.0 - - 3.0
Rocky Point Sugar Mill - 8.8 1.0 ? ? 4.8 - - - - - - - - - - - - - - 0.4 - - - ? ? 10.0 - - 6.4
Somerset Dam 0.2 2.0 0.6 0.1 - - - - - - - - - 0.4 - - - - - - 0.4 - - - - - - - 0.6 3.6
University of Queensland Gatton 1.8 1.6 0.2 0.2 - - - - - - - - - - - - - - - - 4.0 - - - - - 3.4 - - 1.0
Wamuran - - - 4.6 - - - - - - - - 1.1 - - - - - - - - - - - - - 5.8 0.1 - -
Wivenhoe Dam 0.2 2.8 0.6 - - - - - - - - - - - - - - - - - 4.6 - - - - - 0.6 - - 1.8
Woodford Stanmore - 2.0 3.0 - - 1.0 - - - - - - - - - - - - - - - - - - - - 2.7 1.4 - 1.6
Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with ? are part of a longer accumulation, which is shown on the final day.
Values over 100 mm have been rounded to the nearest whole millimetre.
Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
Rainfalls coloured
according to the amount
0 1.0 5.0 10.0 15.0 25.0 50.0 100 150 200 300 400 600 millimetres

Notes

The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Greater Brisbane using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This summary includes data from observing sites in or near the Greater Brisbane “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to “include the population within the urban area of the city, as well as people who regularly socialise, shop or work within the city, and live in small towns and rural areas surrounding the city. It is important to note that GCCSAs do not define the built up edge of the city. They provide a stable definition for these cities and are designed for the output of a range of social and economic survey data.

This statement has been prepared based on information available at 9 pm on Monday 4 October 2021. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057

Climate