Greater Sydney in August 2023

Rainfall

  • Rainfall was generally around average at most sites, though totals ranged from being 49% to 200% of their monthly averages.

Temperature

Sydney (Observatory Hill)

  • Total rainfall for Sydney (Observatory Hill) was 76.6 mm.
  • The mean daily maximum temperature for Sydney (Observatory Hill) was 20.1 °C.
  • The warmest day was 27.5 °C on the 30th, and the coolest day was on the 14th when the temperature reached 16.0 °C.
  • The mean daily minimum temperature for Sydney (Observatory Hill) was 10.5 °C.
  • The coldest morning was 7.7 °C on the 12th, and the warmest morning was on the 10th when the minimum temperature was 12.4 °C.

Extremes in August 2023
Hottest day 27.8 °C at Penrith Lakes AWS on the 30th
Warmest days on average 21.5 °C at Penrith Lakes AWS
Coolest days on average 13.9 °C at Mount Boyce AWS
Coldest day 6.8 °C at Mount Boyce AWS on the 18th
Coldest night -0.7 °C at Camden Airport AWS on the 12th
Coolest nights on average 4.6 °C at Mount Boyce AWS
Warmest nights on average 12.2 °C at Sydney Harbour (Wedding Cake West)
Warmest night 14.5 °C at Norah Head AWS on the 2nd
Warmest on average overall 15.7 °C at Norah Head AWS
Coolest on average overall 9.2 °C at Mount Boyce AWS
Wettest overall 116.8 mm at Terrey Hills AWS
Wettest day 75.8 mm at Terrey Hills AWS on the 6th
Strongest wind gust 85 km/h at Mount Boyce AWS on the 10th

Record highest August mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Katoomba (Farnells Rd) 15.1 14.8 in 1995 95 11.3
Mount Boyce AWS 13.9 13.7 in 1995 31 11.3
Badgerys Creek AWS 21.2 21.1 in 2009 27 19.3



Highest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
August
Sydney Harbour (Wedding Cake West) 12.2 12.3 in 1999* 11.2

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported




Record highest August mean temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Bankstown Airport AWS 14.1 13.9 in 2007 55 12.6
Camden Airport AWS 12.8 12.7 in 2007 46 11.5
Mount Boyce AWS 9.2 = 9.2 in 1995 31 7.1
Badgerys Creek AWS 13.5 13.3 in 2007 27 12.0



Summary statistics for August 2023
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2023
Diff
from
average
Highest for
August
2023
Mean for
August
2023
Diff
from
average
Lowest for
August
2023
Total for
August
2023
Average
for
August
Rank of
August
2023
Fraction of
August
average
Badgerys Creek AWS 21.2 +1.9 26.1 22nd 5.9 +1.1 1.2 12th 44.2 36.8 average 120%
Bankstown Airport AWS 20.9 +1.8 27.1 22nd 7.3 +1.3 3.1 12th 52.8 49.4 high 107%
Camden Airport AWS 20.9 +1.8 26.6 30th 4.8 +0.9 -0.7 12th 38.6 40.8 high 95%
Campbelltown (Mount Annan) 20.6 +1.3 26.0 30th 5.3 +0.7 1.2 12th 58.6 40.9 high 143%
Canterbury Racecourse AWS 20.3 +1.3 26.6 30th 7.3 +0.9 3.4 17th 53.4 61.8 average 86%
Cooranbong (Lake Macquarie AWS) 21.0 +1.2 26.9 30th 5.6 +0.5 0.7 12th 61.6 48.7 average 126%
Gosford AWS 20.2 +1.0 26.7 30th 8.1 +0.5 3.6 12th
Holsworthy Aerodrome AWS 20.1 +1.2 26.1 30th 6.6 +0.6 1.6 12th 41.6 53.2 average 78%
Holsworthy Defence AWS 19.9   25.5 30th 7.1   4.2 17th 52.6
Horsley Park Equestrian Centre AWS 20.6 +1.5 26.1 30th 7.2 +0.8 2.7 12th 66.8 39.1 high 171%
Katoomba (Farnells Rd) 15.1 +3.8 19.0 30th 4.8 +1.5 0.5 11th 57.3 78.3 average 73%
Mangrove Mountain AWS 19.6 +2.1 26.0 30th 6.0 -0.5 2.4 11th 43.0 61.0 average 70%
Mount Boyce AWS 13.9 +2.6 18.6 25th 4.6 +1.6 0.4 19th 53.6 56.4 average 95%
Norah Head AWS 20.0 +1.1 26.3 30th 11.5 +1.0 7.9 19th 61.8 68.9 average 90%
Parramatta North (Masons Drive) 20.5 +1.4 26.0 30th 8.2 +1.1 4.0 12th 45.2 55.3 average 82%
Penrith Lakes AWS 21.5 +1.5 27.8 30th 7.0 +0.9 3.0 12th 40.8 30.4 high 134%
Richmond RAAF 21.3 +1.5 27.1 30th 5.4 +0.9 -0.1 12th 36.8 32.3 high 114%
Sydney (Observatory Hill) 20.1   27.5 30th 10.5   7.7 12th 76.6
Sydney Airport AMO 20.2 +1.7 27.4 30th 10.5 +2.2 7.6 17th 61.0 75.4 average 81%
Sydney Harbour (Wedding Cake West) 18.5 +0.5 24.1 30th 12.2 +1.0 9.8 16th
Sydney Olympic Park AWS (Archery Centre) 20.9 +1.2 27.5 30th 8.0 +1.2 4.3 12th 30.8 62.3 average 49%
Terrey Hills AWS 18.8 +1.0 25.1 30th 9.6 +1.2 5.7 12th 116.8 58.5 high 200%

Daily maximum temperatures for August 2023
12345678910111213141516171819202122232425262728293031
Badgerys Creek AWS23.019.722.724.116.218.317.620.821.523.320.722.219.415.419.018.721.417.619.123.522.626.119.220.423.722.223.123.124.325.821.5
Bankstown Airport AWS22.319.522.824.118.117.416.620.021.224.220.021.318.815.818.118.321.218.719.422.622.027.119.119.322.121.122.022.524.726.620.3
Camden Airport AWS23.519.522.623.815.217.317.020.721.123.220.521.719.215.118.418.521.818.018.622.922.224.418.820.623.722.122.622.724.026.621.5
Campbelltown (Mount Annan)23.519.822.723.515.517.116.320.120.923.020.321.719.014.618.218.322.217.418.622.622.024.418.419.523.320.622.322.423.826.020.8
Canterbury Racecourse AWS21.818.622.223.917.917.516.919.020.623.619.720.918.216.016.718.221.019.018.721.921.925.818.219.220.119.921.421.123.326.618.8
Cooranbong (Lake Macquarie AWS)22.119.021.623.921.717.117.519.320.524.320.223.617.818.018.218.322.719.619.622.022.225.820.820.022.620.420.221.023.926.920.4
Gosford AWS20.324.120.616.016.818.720.023.918.822.417.417.716.817.820.818.619.121.020.025.119.919.321.220.320.821.022.126.719.0
Holsworthy Aerodrome AWS22.019.022.423.216.716.615.819.020.523.319.421.117.715.916.917.421.018.018.422.121.324.918.118.721.519.621.421.724.026.119.8
Holsworthy Defence AWS21.717.922.323.517.515.415.418.020.423.019.922.018.115.116.317.621.016.918.322.922.024.417.318.320.919.821.622.024.025.518.4
Horsley Park Equestrian Centre AWS22.318.922.423.617.816.716.319.320.723.019.821.618.615.617.518.221.018.719.122.021.925.419.019.522.120.922.122.424.326.120.8
Katoomba (Farnells Rd)18.713.018.017.516.214.015.513.512.611.011.512.015.08.810.016.518.018.713.513.517.515.517.017.218.619.0
Mangrove Mountain AWS20.716.421.823.318.613.615.318.819.722.619.222.215.416.715.616.621.817.819.021.921.625.618.618.421.319.920.921.126.018.6
Mount Boyce AWS16.313.415.415.311.411.411.912.614.712.914.412.510.49.911.912.513.56.87.814.316.418.313.913.918.616.416.917.716.618.314.6
Norah Head AWS20.919.419.822.921.116.717.117.821.223.819.419.518.018.815.918.118.519.119.522.018.823.317.620.920.521.419.720.323.326.318.4
Parramatta North (Masons Drive)21.817.822.124.018.016.716.719.920.523.020.022.019.015.317.418.021.519.819.022.822.325.818.819.021.021.520.521.223.226.020.8
Penrith Lakes AWS23.420.223.425.016.718.418.020.622.224.120.622.918.815.419.319.420.918.520.123.322.926.720.620.623.321.822.823.224.727.822.4
Richmond RAAF22.420.123.024.916.817.817.820.321.724.720.023.418.714.919.119.121.019.420.022.522.325.820.620.722.921.622.823.224.827.121.8
Sydney (Observatory Hill)21.918.921.720.716.417.016.319.220.923.819.721.318.516.016.717.321.319.219.122.521.624.618.620.820.220.520.420.927.520.5
Sydney Airport AMO20.819.222.124.818.916.815.117.521.624.418.922.317.815.915.617.321.019.319.922.822.325.417.618.719.318.820.821.222.627.418.8
Sydney Harbour (Wedding Cake West)20.217.817.820.317.116.315.917.318.623.017.520.316.815.515.316.519.218.018.220.719.320.916.918.419.019.218.617.718.024.118.3
Sydney Olympic Park AWS (Archery Centre)22.318.923.024.717.917.317.019.821.724.520.721.718.616.717.117.821.320.019.623.423.026.518.919.520.921.221.522.823.927.519.7
Terrey Hills AWS19.417.820.322.317.314.515.317.518.922.417.820.917.814.714.715.419.916.817.421.220.223.217.717.519.719.419.522.325.118.1
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 August 2023
12345678910111213141516171819202122232425262728293031
Badgerys Creek AWS3.86.54.33.38.110.86.46.44.53.73.41.210.310.35.24.91.99.17.24.68.35.08.37.92.74.45.96.35.16.57.0
Bankstown Airport AWS5.88.05.25.07.511.48.38.06.44.74.93.110.311.25.86.83.89.19.27.78.16.38.410.74.77.16.37.58.19.18.5
Camden Airport AWS1.75.63.61.94.99.34.44.62.61.71.9-0.79.110.32.83.20.77.98.48.67.13.47.06.91.63.54.65.64.95.55.9
Campbelltown (Mount Annan)3.66.44.33.86.49.55.65.04.02.72.91.28.110.13.54.61.76.14.47.17.04.66.97.92.85.45.16.15.26.67.0
Canterbury Racecourse AWS5.27.65.45.57.311.97.210.16.85.25.13.58.811.15.78.53.48.74.79.38.75.88.810.05.06.96.37.37.69.68.7
Cooranbong (Lake Macquarie AWS)2.74.63.12.15.511.88.38.54.93.03.80.78.611.96.96.32.38.84.76.54.73.68.58.52.83.84.64.44.45.48.0
Gosford AWS8.37.26.08.712.88.910.77.36.06.53.610.012.09.110.05.610.15.49.87.25.810.39.35.36.67.47.07.08.69.3
Holsworthy Aerodrome AWS7.27.55.44.68.211.17.87.05.15.25.51.69.110.55.46.02.88.63.69.18.74.98.69.42.96.45.16.66.67.38.1
Holsworthy Defence AWS6.87.76.66.38.89.96.27.05.95.57.35.09.810.05.16.24.27.45.710.67.66.57.98.24.46.46.57.57.48.38.6
Horsley Park Equestrian Centre AWS6.16.55.95.88.911.89.67.76.37.23.92.710.610.27.37.34.39.24.44.88.86.28.29.54.66.57.87.47.37.78.0
Katoomba (Farnells Rd)4.64.55.09.03.50.53.56.06.04.53.03.55.51.04.53.58.03.85.05.05.05.06.55.58.45.5
Mangrove Mountain AWS4.06.15.76.88.111.15.27.54.86.32.42.88.510.45.54.84.28.53.24.64.56.07.65.64.85.56.36.05.57.87.3
Mount Boyce AWS3.24.64.36.98.15.63.74.14.26.20.73.85.15.43.62.53.64.50.42.83.77.43.74.65.74.65.45.84.78.35.3
Norah Head AWS10.714.512.111.212.413.711.512.011.511.09.28.413.212.510.19.910.211.87.910.710.311.012.712.410.712.312.712.312.412.412.1
Parramatta North (Masons Drive)6.38.35.87.210.311.88.29.56.89.86.24.010.410.65.87.05.010.15.86.08.27.28.810.05.87.67.910.310.511.311.4
Penrith Lakes AWS4.47.36.84.98.711.18.68.76.04.84.33.010.111.16.36.64.56.85.25.06.35.98.69.75.56.38.37.28.57.88.3
Richmond RAAF1.05.74.92.76.410.97.18.24.12.61.6-0.19.410.65.75.24.06.02.82.45.53.97.38.33.34.87.35.36.06.27.2
Sydney (Observatory Hill)10.711.19.710.112.112.210.811.011.012.49.27.711.511.68.38.88.210.98.911.011.510.111.411.29.110.310.510.711.011.811.5
Sydney Airport AMO11.011.49.910.212.412.310.210.810.49.79.27.712.011.68.49.27.611.18.110.811.510.611.411.69.210.49.810.911.012.311.6
Sydney Harbour (Wedding Cake West)12.813.612.112.213.813.312.112.112.613.411.710.712.912.110.49.810.012.210.911.813.212.212.412.410.912.612.512.612.713.213.3
Sydney Olympic Park AWS (Archery Centre)5.77.86.17.19.511.98.610.57.76.65.84.39.411.36.48.15.29.05.17.58.67.19.410.85.97.97.88.78.99.59.6
Terrey Hills AWS7.711.311.310.913.011.08.610.09.210.47.95.711.210.76.97.87.810.15.88.89.410.09.410.19.69.910.49.99.812.010.5
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 August 2023
12345678910111213141516171819202122232425262728293031
Abbotsbury (Fairfield (City Farm)) - - 25.0 - - 1.0 - 2.0 - - - - - 12.0 3.0 - - 6.0 - - - - - 2.0 - - - 1.0 6.0 - 27.0
Abbotsford (Blackwall Point Rd) - 0.1 - - - 5.8 0.1 2.0 0.1 - - - 0.1 13.6 1.8 0.8 - 7.4 0.1 - - - 1.8 0.6 - - - - 0.2 - 9.0
Audley (Royal National Park) - - - - - 32.0 - 7.0 - - - - - 15.0 2.0 2.0 - 3.0 - - - - 2.0 1.0 - - - - - - 10.0
Badgerys Creek AWS - - - 0.2 - 5.2 0.2 - - 0.2 - - - 17.6 3.2 - 0.4 3.0 - - - - 0.8 0.2 0.2 - 0.2 - 1.4 0.2 11.2
Bankstown Airport AWS - 0.2 - - 0.2 4.6 - - - 0.2 - - - 14.2 1.0 - - 6.0 0.2 - - - 2.4 0.2 - - - 0.2 6.8 0.2 16.4
Baulkham Hills Eucalyptus Ct - - - - - 2.0 - 0.5 - - - - - 11.0 9.5 - - 7.5 - - - - 3.0 1.0 - - - - - 0.5 11.5
Belrose (Evelyn Place) - - - - - 36.6 0.2 1.4 - - - - 0.2 11.8 8.2 3.2 - 9.0 - - - - 0.2 - - - - - - - 11.4
Bilpin Post Office - 0.4 0.2 - - - 21.0 0.2 - - - - - 19.0 - 2.0 - 7.8 - - - - 0.2 0.6 - - - - 0.2 - 3.2
Blackheath (Wombat Street) - 1.0 1.0 - - 1.0 - - 1.0 - - - - 17.0 10.0 - - 10.0 - - - - - - - - - - 13.0 - 3.0
Bringelly (Maryland) - - - - - 2.0 - - - - - - - 16.0 1.0 1.0 - 2.0 - - - - 1.0 - - - - - 1.0 - 7.0
Camden (Brownlow Hill) - 0.4 - - - 2.0 - - - - - - - 14.2 2.2 1.0 - 2.6 - - - - 1.8 - - - - - - - 1.4
Camden Airport AWS - - - 0.2 - 1.8 - 0.4 0.2 -
- - 14.8 1.8 1.0 0.2 2.8 - - - - 2.0 - 0.2 - - 0.2 9.8 - 3.2
Campbelltown (Kentlyn (Georges River Roa - - - - - 8.0 - 1.0 - - - - - 14.0 3.0 - - 2.0 - - - - 3.0 - - - - - 5.0 - 7.0
Campbelltown (Mount Annan) - - - - - 1.4 - 6.4 - 0.2 - - - 13.2 2.6 5.6 0.2 3.4 - - - - 1.2 0.4 - - 0.2 - 13.6 0.2 10.0
Canterbury Racecourse AWS - - - - - 9.8 - 4.6 0.2 - - - - 15.6 3.0 0.6 - 7.6 - - - - 2.0 1.4 - - - - 0.2 - 8.4
Centennial Park - - - - - 8.0 0.6























Chatswood Bowling Club - - - - - - - 1.0 - - - - - -


3.0 - - - - 1.0 - - - - - - - 5.0
Collaroy (Long Reef Golf Club) - - - - - 32.1 13.2 3.8 - - - - - 11.2 6.4 8.2 - 7.2












Colo Heights (Mountain Pines) - 0.8 - - - 2.2 - - - - - - - 15.0 21.4 1.8 - 9.2 - - - - 1.4 - - - - - - - 10.2
Concord (Brays Rd) - - - - - 9.0 - 3.4 - - - - - 15.6 1.4 1.6 - 3.2 - - - - - 0.6 - - - - 0.2 - 9.0
Concord Golf Club - 0.4 - - - 8.2 - 5.4 - - - - 0.2 15.0 - - - 7.4 - - - - 3.0 3.2 - - - - 1.4

Cooranbong (Avondale) - 1.0 - - - 24.0 - 1.0 - - - - - 9.0 8.0 1.0 - 5.0 - - - - - - - - - - 1.0 - 4.0
Cooranbong (Lake Macquarie AWS) 0.2 1.0 0.2 - - 27.6 0.4 - 0.2 0.2 - - - 10.2 9.6 - 0.2 5.8 - - - - - 0.2 - - 0.2 - - 0.2 5.4
Darkes Forest (Kintyre) - 1.0 1.0 - - 35.0 - - 1.0 - - - - 13.0 2.0 1.0 - 3.0 - - - - 8.0 2.0 - - - - 1.0 - 8.0
Erskine Park Reservoir - - - - - 2.0 - 2.0 - - - - - 12.0 7.0 - - 6.0 - - - - - - - - - - 7.0 - 11.0
Faulconbridge (Great Western Hwy) - - - - - 18.0 - - - - - - - 18.0 11.0 - - 6.0 - - - - - 1.0 - - - - - - 5.0
Faulconbridge (St Georges Crescent) - 0.4 - - - 26.0 0.2 - - - - - - 18.4 11.0 - - 5.0 - - - - 0.2 - - - - - 0.8 - 3.2
Gears (Wyong River)
















1.5












Gosford AWS







- - - - - 13.6 8.0 0.8 0.2 4.2 - - - - - - - - - - - - 7.0
Holsworthy Aerodrome AWS - - - - - 7.4 - 1.8 0.2 - - - - 12.8 1.0 0.2 - 3.6 - - - - 2.2 0.4 0.2 - - - 0.6 - 11.2
Holsworthy Defence AWS - 0.4 - 0.2 - 16.2 - 0.2 - - - - - 14.6 2.2 0.2 0.2 2.6 - - - - 3.2 1.2 - - 0.2 - 4.2 - 7.0
Hornsby (Swimming Pool)
- - - - - - 1.2 - - - - - - 3.6 - - 0.2

- - 0.2 - - - - - - - -
Horsley Park Equestrian Centre AWS - - - - - 2.2 - 0.4 - - - - - 14.8 4.2 - - 6.2 - - - - 0.8 1.0 0.2 - - - 12.8 0.2 24.0
Katoomba (Farnells Rd) 0.8 0.3 - -
- - - - - - 0.4 15.4 15.8 1.0 - 4.4 - 0.4 - - 0.6 - - - - - 12.4 - 5.8
Kurrajong Heights (Bells Line of Road) - 0.6 - - - 4.4 - - - - - - - 18.2 13.8 - - 10.8 - - - - 0.5 0.2 - - - - - - 3.8
Lucas Heights (ANSTO) - 0.6 0.1 - - 22.2 0.1 0.8 - - - - 0.2 13.6 3.4 - - 2.8 - - - - 5.4 0.8 - - - - 1.0 7.8
Mangrove Mountain AWS - 0.6 0.2 - - 7.6 2.6 1.0 - - - - - 11.6 10.4 - 0.2 4.4 - - - - - - - - - - -
4.4
Marrickville Golf Club - - - - - 15.0 - 8.0 - - - - - 16.0 4.0 - - 6.0 -











Menangle Bridge (Nepean River) - - - - - 1.0 - 2.0 - - - - - 11.0 3.0 2.0 - 3.0 - - - - 5.0 - - - - - 2.0 - 2.0
Mona Vale Golf Club - 0.2 1.0 0.4 - 40.8 2.4 3.0 0.8 0.2 - 0.2 - - 5.8 - 0.4 6.4 - - - 0.2 0.2 0.6 0.2 0.4 0.2 0.4 - 0.2 6.8
Mount Boyce AWS - 1.6 0.4 0.2 - 1.0 0.2 - - 0.2 - - 0.2 17.2 10.8 0.2 - 8.0 0.2 - - - - - - - - - 10.4 - 3.0
Mount Wilson (Clarine) - 1.0 - - 1.0 3.0 1.0 - - - - - 20.0 4.0 7.6 - - 6.0 - - - - - - - - - - 5.0 - 4.6
Norah Head AWS - 1.0 0.2 0.2 - 14.4 1.4
- - - - - 14.0 13.0 0.4 0.2 4.4 - - - 0.2 4.0 3.2 -
- - 0.2 - 5.0
North Parramatta (Burnside Homes) - - - - - 2.0 - 1.5 0.5 - - - - 11.5 8.5 - - 7.0 - - - - 2.0 1.0 - - - - - 0.5 7.5
North Rocks (Muirfield Golf Club) - - - - - 3.0 - 1.5 - - - - - 11.5 9.5 - - 7.0 - - - - 1.5 0.5 - - - - - - 10.0
North Ryde Golf Club - - - - - 5.0 - 1.0 - - - - - 12.0 4.0 1.0 - 8.0 - - - - 2.0 - - - 1.0 - - - 11.0
Parramatta North (Masons Drive) - - - - - 2.4 - 2.0 - - - - 0.2 12.2 8.4 - - 7.8 - - - - 2.8 1.2 - - - - 0.2 - 8.0
Peakhurst Golf Club - - - - - 20.0 - 2.0 - - - - - 13.0 2.0 - - 6.0 - - - - 3.0 1.0 - - - - - - 8.0
Penrith Lakes AWS - - - - 0.2 4.0 - 0.8 - 0.2 - - - 15.4 7.2 - 0.2 6.8 0.2 - - - - - - - - - 0.8 - 5.0
Prospect Reservoir - - - - - 2.0 - 1.0 - - - - - 14.0 7.0 - - 7.0 - - - - 1.0 1.0 - 1.0 - - 2.0 - 7.0
Putty (The Gibba) - - - - - - - - - - - - - 7.0 5.0 - - 7.0 - - - - - - - - - - - - 7.0
Randwick (Randwick St) - - - - - 5.0 1.0 14.2 1.2 - - - 0.2 15.6 2.6 15.4 - 8.8 - - - - 1.8 1.2 - - - - 0.4 - 13.8
Richmond RAAF - - 0.4 - - 1.0 - - - - - - - 13.8 7.6 - 0.2 7.8 - - - - 0.6 0.2 0.2 - - - - - 5.0
Rose Bay (Royal Sydney Golf Club) - - - - - 4.8 1.8 13.2 - - - - 0.2 14.4 4.6 33.0 - 9.0 - - - - 2.0 0.6 - - - - 0.2 - 23.4
Rossmore (South Creek) - - - - - 2.0 - - - - - - - 15.0 2.0 1.0 - 3.0 - - - - 1.0 - 1.0 - - - 5.0 - 8.0
Sans Souci (Public School) - - - - - 3.0 - 9.0 - - - - - 15.0 2.0 9.0 - 6.0 - - - - 4.0 - - - - - - - 4.0
Seven Hills (Radio FM 103.2) - - - - - 4.0 - 1.5 - - - - - 11.0 7.0 - - 6.5 - - - - 1.0 1.0 - - - - 1.5 - 6.0
Shanes Park (South Creek Road) - - - - - 2.4 - 0.2 - - - - - 12.6 6.4 0.2 - 7.2 - - - - 0.4 - - - - - 0.6 0.2 6.4
Sydney (Observatory Hill) - - - - - 16.6 - 8.2 - - - - - 15.6 3.0 12.6 - 9.2 0.2 - - - 1.0 0.8 -
- - - - 9.4
Sydney Airport AMO - - - - - 5.0 0.4 11.4 - - - - - 16.2 3.0 5.4 - 7.2 0.2 - - - 1.4 2.0 - - - - - - 8.8
Sydney Botanic Gardens - - - - - 10.2 0.2 6.8 - - - - 0.2 14.6 3.4 17.2 0.4 9.0 0.2 - - - 1.2 1.0 - - - - - - 9.2
Sydney Olympic Park AWS (Archery Centre) - - - - - 3.0 - 3.4 0.2 - - - - 7.6 2.2 - 0.2 4.8 - - - - 1.2 1.0 0.2 - - - 0.2 0.2 6.6
Terrey Hills AWS - - 0.6 - - 75.8 0.2 3.8 0.2 - - - - 11.2 7.8 0.6 - 6.2 - - - - - - - 0.2 - -
- 10.2
Wahroonga (Ada Avenue) - - 0.6 - - 3.4 - 3.2 - - - - - 12.4 10.6 0.2 0.2 11.2 - - - - 1.6 0.4 - 0.2 0.2 - 0.2 - 16.0
Warragamba - - - - - 9.0 - - - - - - - 17.0 5.0 - - 2.0 - - - - - - - - - - 1.0 - 1.0
Wedderburn (Booalbyn) - - 1.0 - - - - - - - - - - 13.0 1.0 1.0 - 4.0 - - - - 6.0 2.0 - - - - 2.0 - 4.0
Wyong (Kulnura (Jeavons)) - - - - - 4.0 1.0 - - - - - 1.0 10.0 11.0 - - 4.0 - - - - - - - - - - - - 5.0
Yarramalong (Lewensbrook) - 1.6 - - - 14.0 - 1.4 - - - - - 11.4 12.0 - - 5.0 - - - - - - - - - - - - 5.4
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, usually published in the first week of the following month, lists the main features of the weather in Greater Sydney using the most timely and accurate information available on the date of publication; it will generally not be updated.

This summary includes data from observing sites in or near the Greater Sydney “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to represent a socio-economic definition of each capital city. This means the greater capital city boundary includes people who regularly socialise, shop or work within the capital city, but live in the small towns and rural areas surrounding the capital city. It does not define the built up edge of the capital city.

This statement has been prepared based on information available at 10 am on Friday 1 September 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.


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