South Australia in September 2023

Rainfall

  • Rainfall in September was below to very much below average throughout South Australia.
  • For South Australia as a whole, rainfall was 81% below average (based on 1961–1990), making it the state's seventh-driest September on record (since 1900).
  • Rainfall totals were generally less than 60% of average in the southern Agricultural districts, and little or no rain was recorded in the northern Pastoral districts.
  • A low pressure trough and cold front crossed the state on the 7th, bringing 48-hour rainfall totals of more than 10 mm to many agricultural areas on the 7th and 8th.
  • The strongest recorded wind gusts during the month were on the 7th, with several stations recording gusts in excess of 100 km/h and Cape Jaffa (The Limestone) recording 111 km/h during the night.

Temperature


Extremes in September 2023
Hottest day 40.0 °C at Nullarbor on the 30th
Warmest days on average 30.5 °C at Oodnadatta Airport
Coolest days on average 17.1 °C at Mount Lofty
Coldest day 7.7 °C at Mount Lofty on the 7th
Coldest night -3.3 °C at Yunta Airstrip on the 9th
Coolest nights on average 5.0 °C at Keith (Munkora)
Warmest nights on average 13.5 °C at Oodnadatta Airport
Warmest night 21.8 °C at Marree Aero on the 27th
Warmest on average overall 22.2 °C at Oodnadatta Airport
Coolest on average overall 12.8 °C at Mount Lofty
Wettest overall 64.4 mm at Ashton
Wettest day 31.6 mm at Willunga on the 7th
Strongest wind gust 111 km/h at Cape Jaffa (The Limestone) on the 7th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest September temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Ceduna AMO 39.8 on the 17th 39.7 on the 29th in 1980 83 21.6
Streaky Bay 37.5 on the 30th 34.6 on the 16th in 1981 65 20.3
Eudunda 31.4 on the 17th 31.1 on the 27th in 2008 59 17.2
Cape Willoughby 27.5 on the 30th 27.3 on the 26th in 1987 57 15.9
Nullarbor 40.0 on the 30th 38.6 on the 10th in 2020 37 22.6
Cape Jaffa (The Limestone) 27.6 on the 30th 27.5 on the 27th in 2011 32 16.2
North Shields (Port Lincoln AWS) 35.9 on the 30th 34.0 on the 27th in 2014 32 18.6
Kingscote Aero 29.8 on the 30th 27.8 on the 18th in 2006 30 17.8
Parawa (Second Valley Forest AWS) 27.3 on the 30th 25.9 on the 25th in 2007 30 14.6
Minnipa PIRSA 36.6 on the 30th 35.5 on the 30th in 1998 28 21.7
Stenhouse Bay 33.2 on the 30th 30.7 on the 27th in 2014 28 18.0
Strathalbyn Racecourse 31.4 on the 30th 31.3 on the 27th in 2008 28 18.6
Yunta Airstrip 35.7 on the 18th 35.5 on the 27th in 2012 26 21.9
Gluepot Reserve (Gluepot) 38.0 on the 18th 37.1 on the 22nd in 2003 25 22.5
Wudinna Aero 37.5 on the 17th 36.8 on the 27th in 2008 25 22.5
Keith (Munkora) 32.7 on the 30th 32.1 on the 28th in 2014 23 18.6
Port Augusta Aero 38.4 on the 18th 38.2 on the 27th in 2008 23 23.9
Victor Harbor (Encounter Bay) 31.4 on the 30th 31.2 on the 2nd in 2021 23 18.4
Cape Borda 25.6 on the 30th 25.5 on the 18th in 2020 22 15.9
Mount Lofty 25.9 on the 30th 25.2 on the 30th in 2001 22 12.5
Hindmarsh Island AWS 32.1 on the 30th 32.0 on the 27th in 2008 21 18.6



Record highest September mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Mount Barker 20.8 19.8 in 2013 121 16.6
Adelaide (West Terrace / ngayirdapira) 22.1 21.5 in 1944 98 18.4
Yongala 22.3 22.2 in 2013 97 18.0
Streaky Bay 25.1 24.1 in 2013 95 20.3
Ceduna AMO 26.5 = 26.5 in 2013 82 21.6
Cleve 24.0 23.4 in 1988 82 19.5
Mount Gambier Aero 19.0 18.1 in 2013 81 15.9
Keith 21.8 21.0 in 2013 69 18.6
Parafield Airport 23.0 22.3 in 2013 66 19.0
Warooka 20.7 20.2 in 2013 64 17.9
Neptune Island 18.3 17.9 in 2013 61 16.2
Eudunda 21.2 20.7 in 2013 58 17.2
Murray Bridge 24.1 24.0 in 2013 57 20.0
Cape Willoughby 18.4 18.3 in 2013 56 15.9
Edinburgh RAAF 22.5 21.9 in 2013 50 19.0
Loxton Research Centre 24.9 24.6 in 2013 39 20.9
Coonawarra 19.3 18.9 in 2013 37 16.9
Nullarbor 26.8 25.2 in 2013 36 22.6
Cape Jaffa (The Limestone) 18.2 18.0 in 2013 31 16.2
North Shields (Port Lincoln AWS) 21.9 21.1 in 2006 31 18.6
Edithburgh 20.5 19.8 in 2006 30 17.8
Clare High School 21.0 20.3 in 2013 29 17.3
Kingscote Aero 19.9 19.8 in 2006 29 17.8
Parawa (Second Valley Forest AWS) 17.3 17.1 in 2013 29 14.6
Cleve Aerodrome 23.9 22.9 in 2013 27 20.2
Minnipa PIRSA 25.9 25.1 in 2013 27 21.7
Nuriootpa PIRSA 21.3 20.5 in 2013 27 17.8
Stenhouse Bay 20.6 19.9 in 2007 27 18.0
Roseworthy AWS 23.7 22.4 in 2013 26 19.8
Snowtown (Rayville Park) 23.7 23.1 in 2006 25 20.4
Gluepot Reserve (Gluepot) 26.4 26.2 in 2013 24 22.5
Wudinna Aero 26.8 25.8 in 2013 24 22.5
Noarlunga 21.5 21.2 in 2013 23 18.5
Padthaway South 20.0 19.9 in 2006 23 17.7
Minlaton Aero 22.1 20.9 in 2013 22 19.1
Cape Borda 17.6 = 17.6 in 2013 21 15.9
Mount Lofty 17.1 14.7 in 2020 21 12.5

Highest September mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
September
Mount Crawford AWS 18.7 20.1 in 2001 15.1



Record highest September daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Mount Lofty 17.5 on the 30th 16.7 on the 18th in 2006 22 6.1



Record lowest September temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Cleve Aerodrome 1.6 on the 9th 1.8 on the 14th in 2009 28 8.5
Marree Aero 2.7 on the 9th 2.8 on the 7th in 2011 26 10.6
Tarcoola Aero -0.1 on the 8th = -0.1 on the 7th in 2019 26 9.0
Yunta Airstrip -3.3 on the 9th -3.2 on the 18th in 2019 26 6.6



Record highest September mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Robe 12.3 11.2 in 2013 139 9.3
Mount Lofty 8.4 7.1 in 1998 21 6.1



Record highest September mean temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Robe 15.0 14.5 in 2013 139 12.5
Adelaide (West Terrace / ngayirdapira) 16.2 = 16.2 in 1944 98 13.8
Mount Gambier Aero 13.4 13.3 in 2013 81 11.1
Eudunda 15.2 15.0 in 2013 58 11.8
Nullarbor 18.2 17.7 in 2013 35 15.3
Minnipa PIRSA 17.9 17.8 in 2013 26 14.9
Mount Lofty 12.8 10.9 in 2020 21 9.3



Summary statistics for September 2023
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2023
Diff
from
average
Highest for
September
2023
Mean for
September
2023
Diff
from
average
Lowest for
September
2023
Total for
September
2023
Average
for
September
Rank of
September
2023
Fraction of
September
average
Northwest (district 16)
Andamooka 28.4 +3.6 36.8 18th 11.1 +0.6 4.1 8th 0 11.4 lowest 0%
Coober Pedy Airport 28.9 +3.2 37.2 18th 12.5 +1.4 4.6 8th 0 8.2 lowest 0%
Ernabella (Pukatja) 28.1 +1.9 34.8 30th 11.1 +0.3 4.4 9th 0 12.6 lowest 0%
Roxby Downs (Olympic Dam Aerodrome) 28.2 +3.0 37.2 18th 9.6 +0.3 1.9 10th 0 8.9 lowest 0%
Tarcoola Aero 29.3 +3.9 38.4 30th 9.0 0.0 -0.1 8th 0.2 8.9 low 2%
Woomera Aerodrome 27.5 +4.7 37.4 18th 11.2 +1.7 3.4 8th 0.2 14.1 v low 1%
Far North (district 17)
Leigh Creek Airport 27.4 +3.9 35.7 17th 11.0 +1.6 3.7 9th 0 16.8 lowest 0%
Marree Aero 29.3 +2.7 37.7 17th 11.3 +0.7 2.7 9th 0 11.0 lowest 0%
Moomba Airport 30.3 +3.1 37.9 30th 13.2 +1.2 6.1 9th 1.0 14.7 average 7%
Oodnadatta Airport 30.5 +3.8 38.5 19th 13.5 +2.0 4.5 9th 0 10.0 lowest 0%
Western Agricultural (district 18)
Ceduna AMO 26.5 +4.9 39.8 17th 9.1 +1.2 -0.1 9th 6.4 26.1 low 25%
Cleve 24.0 +4.5 34.2 17th 9.9 +1.3 2.5 23rd 16.3 41.8 low 39%
Cleve Aerodrome 23.9 +3.7 35.2 17th 9.2 +0.7 1.6 9th 15.0 34.8 low 43%
Coffin Bay (Point Avoid) 20.8   29.6 30th 11.0   4.6 9th 16.6
Cultana (Defence) 26.3   36.7 18th 10.7   3.8 8th 3.2
Cummins Aero 22.8 +3.3 35.1 30th 6.0 -0.1 -0.6 9th 22.6 39.8 average 57%
Elliston     30.9 13th 9.7 +0.1 2.7 9th 14.2 39.0 low 36%
Kyancutta     37.2 17th 7.2 +0.9 -0.6 9th 11.9 30.8 low 39%
Minnipa PIRSA 25.9 +4.2 36.6 30th 9.8 +1.5 3.1 9th 12.2 27.0 average 45%
Neptune Island 18.3 +2.1 23.1 14th 13.0 +1.4 8.4 8th 18.8 44.0 low 43%
North Shields (Port Lincoln AWS) 21.9 +3.3 35.9 30th 7.7 -0.3 3.5 10th 18.6 39.3 low 47%
Nullarbor 26.8 +4.2 40.0 30th 9.7 +1.7 1.6 9th 1.8 17.6 v low 10%
Port Augusta Aero 27.3 +3.4 38.4 18th 8.8 +0.3 1.1 9th 3.0 18.3 low 16%
Streaky Bay 25.1 +4.8 37.5 30th 10.1 +0.2 3.0 22nd 9.9 34.9 v low 28%
Whyalla Aero 24.1 +2.4 36.9 17th 8.6 +0.4 1.4 9th 4.0 25.4 low 16%
Wudinna Aero 26.8 +4.3 37.5 17th 7.4 +0.3 1.0 9th 17.4 24.7 average 70%
Upper North (district 19)
Yongala 22.3 +4.3 32.0 18th 5.1 +1.1 -2.6 9th 18.4 37.8 low 49%
Northeast (district 20)
Gluepot Reserve (Gluepot) 26.4 +3.9 38.0 18th 6.4 -0.2 -2.5 9th 4.2 25.5 low 16%
Yunta Airstrip 25.5 +3.6 35.7 18th 6.0 -0.6 -3.3 9th 2.2 17.0 low 13%
Lower North (district 21)
Clare High School 21.0 +3.7 29.8 17th 6.2 +0.1 -1.0 9th 27.4 57.9 low 47%
Port Pirie Aerodrome AWS 25.5   35.5 17th 6.7   -0.3 9th 13.2
Snowtown (Rayville Park) 23.7 +3.3 33.5 17th 5.3 0.0 -1.0 9th 23.6 38.1 average 62%
Yorke Peninsula (district 22A)
Edithburgh 20.5 +2.7 33.6 30th 8.6 0.0 2.5 9th 15.6 42.8 low 36%
Kadina AWS 23.0 +2.8 33.9 17th 5.8 -0.3 -0.1 9th 21.2 32.1 average 66%
Minlaton Aero 22.1 +3.0 32.5 30th 8.3 +0.5 0.8 9th 19.6 32.4 average 60%
Stenhouse Bay 20.6 +2.6 33.2 30th 10.9 +0.5 6.7 8th 29.2 45.2 low 65%
Warooka 20.7 +2.8 29.0 30th 9.8 +1.1 5.0 9th 21.6 45.6 low 47%
Kangaroo Island (district 22B)
Cape Borda 17.6 +1.7 25.6 30th 10.6 +1.2 5.5 22nd 22.6 46.2 low 49%
Cape Willoughby 18.4 +2.5 27.5 30th 11.8 +1.4 6.8 8th 30.6 56.2 low 54%
Kingscote Aero 19.9 +2.1 29.8 30th 6.0 -0.5 1.0 22nd 23.8 46.5 low 51%
Adelaide Plains (district 23A)
Adelaide (West Terrace / ngayirdapira) 22.1 +3.7 31.5 30th 10.2 +0.9 3.7 9th 24.8 50.6 low 49%
Adelaide Airport 21.1 +2.8 31.1 30th 9.7 +0.7 4.3 9th 21.2 44.4 low 48%
Edinburgh RAAF 22.5 +3.5 33.0 30th 8.5 +0.4 3.0 9th 17.8 46.7 v low 38%
Parafield Airport 23.0 +4.0 32.2 30th 8.1 -0.1 1.6 9th 20.8 43.8 low 47%
Roseworthy AWS 23.7 +3.9 33.4 30th 6.4 +0.1 1.4 9th 15.4 44.3 lowest 35%
County Light (district 23B)
Nuriootpa PIRSA 21.3 +3.5 30.6 30th 6.0 -0.6 -0.5 9th 17.8 56.9 lowest 31%
Mount Lofty Ranges (district 23C)
Hindmarsh Island AWS 21.0 +2.4 32.1 30th 10.0 +0.7 5.5 2nd 24.0 41.0 low 59%
Kuitpo Forest Reserve 18.8 +2.7 28.6 30th 9.4 +1.4 3.3 8th 44.2 75.5 low 59%
Mount Barker 20.8 +4.2 29.4 30th 7.4 +1.5 1.3 9th 33.0 85.1 v low 39%
Mount Crawford AWS 18.7 +3.6 28.1 30th 9.2 +2.0 3.3 8th 29.2 71.2 v low 41%
Mount Lofty 17.1 +4.6 25.9 30th 8.4 +2.3 1.6 8th 46.2 109.6 v low 42%
Noarlunga 21.5 +3.0 31.3 30th 10.9 +0.7 4.9 9th 32.2 43.7 average 74%
Parawa (Second Valley Forest AWS) 17.3 +2.7 27.3 30th 9.3 +1.3 4.6 8th 0 79.8 lowest 0%
Victor Harbor (Encounter Bay) 20.5 +2.1 31.4 30th 7.6 0.0 1.9 22nd 35.8 59.4 low 60%
Upper Murray Valley (district 24A)
Loxton Research Centre 24.9 +4.0 35.1 18th 6.2 -0.2 -0.3 2nd 4.0 28.1 v low 14%
Renmark Aero 25.7 +3.7 36.4 18th 5.9 -0.8 -1.1 9th 4.4 25.4 low 17%
Lower Murray Valley (district 24B)
Eudunda 21.2 +4.0 31.4 17th 9.1 +2.7 2.8 9th 19.8 48.6 low 41%
Murray Bridge 24.1 +4.1 33.7 30th 7.8 +0.6 2.5 2nd 6.3 36.8 v low 17%
Murray Bridge (Pallamana Aerodrome) 23.6 +3.4 33.9 30th 5.3 0.0 -0.1 22nd 2.8 34.3 v low 8%
Strathalbyn Racecourse 21.2 +2.6 31.4 30th 8.0 +0.4 2.8 22nd 15.6 46.8 v low 33%
Murray Mallee (district 25A)
Karoonda 22.5 +2.2 31.8 17th 6.7 +0.3 2.0 2nd 10.6 35.1 v low 30%
Upper Southeast (district 25B)
Keith 21.8 +3.2 32.8 30th 7.3 +0.3 1.9 2nd 17.6 49.7 v low 35%
Keith (Munkora) 21.2 +2.6 32.7 30th 5.0 -0.3 -0.8 22nd 1.8 37.0 lowest 5%
Lameroo (Austin Plains) 22.4 +2.9 33.0 30th 5.4 +0.1 0.6 9th 13.0 31.9 low 41%
Lower Southeast (district 26)
Cape Jaffa (The Limestone) 18.2 +2.0 27.6 30th 8.8 +0.3 2.9 29th 33.2 48.8 low 68%
Coonawarra 19.3 +2.4 29.4 30th 6.9 +0.5 0.9 22nd 29.8 60.9 low 49%
Mount Gambier Aero 19.0 +3.1 29.8 30th 7.6 +1.3 0.8 22nd 49.4 71.9 low 69%
Naracoorte Aerodrome 19.5 +2.1 29.9 30th 7.1 +0.7 -0.1 22nd 30.6 51.1 low 60%
Padthaway South 20.0 +2.3 30.6 30th 6.3 -0.7 0.7 22nd 29.4 44.0 low 67%
Robe 17.6 +1.9 23.0 30th 12.3 +3.0 9.1 8th 38.9 59.2 low 66%
Robe Airfield 18.0 +1.3 26.1 30th 8.3 +0.3 1.1 22nd 42.6 53.7 average 79%

Notes

The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in South Australia using the most timely and accurate information available on the date of publication; it will generally not be updated.

This statement has been prepared based on information available at 3 pm on Sunday 1 October 2023. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.


Creative Commons By Attribution logo Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence

Climate