Greater Melbourne in September 2025

Rainfall

  • Rainfall totals for September were below to very much below average at all sites across Greater Melbourne.
  • September rainfall totals ranged from around 26% to around 82% of average across Greater Melbourne.

Temperature

  • Mean maximum temperatures for September at most sites across Greater Melbourne were above average.
  • September mean maximum temperatures for Greater Melbourne ranged from 0.2 °C below average at Ferny Creek to 1.8 °C above average at Laverton RAAF.
  • Mean minimum temperatures for September at most sites across Greater Melbourne were above average.
  • September mean minimum temperatures for Greater Melbourne ranged from 0.1 °C below average at Ferny Creek to 2.0 °C above average at Essendon Airport.

Melbourne (Olympic Park)

  • Total rainfall for Melbourne (Olympic Park) was 17.6 mm, which is 39% of the long-term average of 44.8 mm.
  • The mean daily maximum temperature for Melbourne (Olympic Park) was 18.3 °C, which is 0.3 °C above the long-term average of 18.0 °C.
  • The warmest day was 24.2 °C on the 26th, and the coolest day was on the 22nd when the temperature reached 13.9 °C.
  • The mean daily minimum temperature for Melbourne (Olympic Park) was 10.1 °C, which is 0.6 °C above the long-term average of 9.5 °C.
  • The coldest morning was 3.7 °C on the 6th, and the warmest morning was on the 16th when the minimum temperature was 15.7 °C.

Extremes in September 2025
Hottest day 26.0 °C at Point Cook RAAF on the 15th
Warmest days on average 18.9 °C at Point Cook RAAF
18.9 °C at Laverton RAAF
Coolest days on average 13.8 °C at Ferny Creek
13.8 °C at Wallan (Kilmore Gap)
Coldest day 9.2 °C at Ferny Creek on the 4th
Coldest night -3.3 °C at Coldstream on the 6th
Coolest nights on average 5.8 °C at Wallan (Kilmore Gap)
Warmest nights on average 10.1 °C at Melbourne (Olympic Park)
Warmest night 15.7 °C at Melbourne (Olympic Park) on the 16th
Warmest on average overall 14.2 °C at Melbourne (Olympic Park)
Coolest on average overall 9.8 °C at Wallan (Kilmore Gap)
Wettest overall 60.8 mm at Monbulk (Spring Road)
Wettest day 17.0 mm at Willowmavin (Avalon Station) on the 8th
Strongest wind gust 104.0 km/h at Melbourne Airport on the 15th


Summary statistics for September 2025
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2025
Diff
from
average
Highest for
September
2025
Mean for
September
2025
Diff
from
average
Lowest for
September
2025
Total for
September
2025
Average
for
September
Rank of
September
2025
Fraction of
September
average
Cerberus 17.2 +0.6 22.6 29th 8.7 +1.0 2.2 5th 54.6 67.0 average 82%
Coldstream 17.7 +0.4 23.4 15th 6.5 +0.9 -3.3 6th 25.4 68.1 low 37%
Essendon Airport 18.3 +1.3 24.1 26th 9.0 +2.0 2.3 6th 17.0 50.2 low 34%
Ferny Creek 13.8 -0.2 19.5 15th 6.7 -0.1 2.0 5th 59.6 99.3 v low 60%
Frankston (Ballam Park) 17.2 24.4 15th 9.1 2.3 6th 31.0
Laverton RAAF 18.9 +1.8 25.7 15th 8.7 +1.9 1.5 5th 15.2 47.6 v low 32%
Melbourne (Olympic Park) 18.3 +0.3 24.2 26th 10.1 +0.6 3.7 6th 17.6 44.8 low 39%
Melbourne Airport 18.3 +1.4 24.2 26th 8.0 +0.9 1.0 6th 15.6 45.7 v low 34%
Moorabbin Airport 18.2 +1.2 25.2 15th 9.4 +1.3 0.7 6th 16.2 63.1 lowest 26%
Point Cook RAAF 18.9 26.0 15th 8.4 1.5 5th 12.8
Scoresby Research Institute 17.8 +1.2 23.7 15th 8.3 +0.7 0.2 6th 27.0 80.8 lowest 33%
Viewbank 18.4 +0.6 24.6 26th 8.8 +1.0 1.0 6th 16.8 55.2 v low 30%
Wallan (Kilmore Gap) 13.8 +0.5 20.5 26th 5.8 +0.1 1.5 5th 29.4 59.6 low 49%

Daily maximum temperatures for September 2025
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
Cerberus 15.8 16.8 17.0 14.5 13.8 21.4 21.1 19.1 15.1 14.0 14.8 17.4 17.0 21.1 18.9 15.6 19.7 21.0 13.8 15.0 13.4 15.6 15.8 15.3 20.9 17.7 14.8 22.6 18.4
Coldstream 15.9 16.2 18.2 15.4 14.8 21.1 21.5 19.6 17.1 13.5 15.6 15.3 18.0 20.9 23.4 15.9 16.3 18.6 21.3 14.4 14.2 14.2 16.1 17.4 15.8 21.8 18.9 17.4 20.9 21.7
Essendon Airport 16.4 16.6 18.8 15.6 14.7 21.1 19.0 19.5 17.2 13.4 14.8 17.3 17.2 21.3 23.8 18.6 16.0 19.4 22.7 15.6 16.5 14.8 18.2 18.2 17.0 24.1 19.3 16.6 22.5 21.5
Ferny Creek 12.7 12.1 14.4 9.2 12.0 17.2 17.2 15.7 13.2 9.3 11.9 12.7 13.3 16.6 19.5 13.8 11.9 14.9 18.3 10.8 10.9 10.4 12.7 12.0 11.2 16.7 15.3 13.7 18.0 15.4
Frankston (Ballam Park) 15.9 17.0 17.2 13.6 14.1 21.6 20.8 17.8 15.4 13.5 15.4 16.3 16.4 21.0 24.4 18.4 15.0 19.4 21.3 13.7 14.4 14.4 15.9 16.2 14.4 19.4 17.2 16.3 22.2 18.6
Laverton RAAF 16.6 17.6 19.0 15.8 14.1 21.8 19.1 21.5 18.2 13.2 15.2 17.6 18.3 22.1 25.7 20.6 16.7 20.7 23.5 15.6 18.3 15.3 18.4 17.4 18.4 24.1 19.6 16.9 23.9 21.2
Melbourne (Olympic Park) 15.7 17.2 19.4 15.8 15.4 22.1 20.8 20.1 16.2 14.0 14.6 17.1 17.0 21.4 24.2 18.6 16.1 19.8 23.1 15.2 17.2 13.9 17.7 17.3 17.2 24.2 19.5 16.1 22.5 21.0
Melbourne Airport 16.5 17.1 18.5 15.4 14.7 20.3 17.8 19.8 18.1 12.6 14.8 16.6 18.9 21.1 24.2 19.3 15.8 19.6 22.6 15.5 16.3 14.7 18.0 18.4 16.7 24.2 19.4 16.7 22.5 22.5
Moorabbin Airport 16.6 17.2 19.1 14.9 14.7 22.0 21.3 20.0 15.6 14.0 14.6 16.8 17.6 22.0 25.2 18.9 16.2 20.3 22.6 14.9 16.7 14.2 16.5 16.8 16.2 22.6 18.6 16.3 23.4 19.2
Point Cook RAAF 16.3 17.9 19.6 15.3 13.5 22.2 19.4 21.1 17.6 13.7 15.4 18.6 18.2 22.6 26.0 20.8 17.0 21.3 23.4 16.2 17.9 15.4 18.8 17.4 17.2 24.1 19.6 16.4 24.4 21.0
Scoresby Research Institute 17.3 16.2 18.1 13.6 14.6 20.9 20.9 19.6 16.3 13.4 15.0 16.8 18.4 20.3 23.7 18.2 16.1 18.6 21.6 14.4 15.3 13.8 16.8 16.9 15.6 22.8 19.2 17.2 22.1 19.1
Viewbank 15.7 16.9 19.1 16.2 15.5 21.8 21.1 19.2 16.5 13.3 15.4 17.4 17.9 21.4 24.4 18.3 17.0 19.5 22.5 16.2 15.9 13.9 18.1 17.2 16.2 24.6 20.0 17.2 22.5 22.5
Wallan (Kilmore Gap) 12.3 12.2 15.0 12.2 10.5 15.7 13.0 14.0 13.6 9.3 10.8 12.6 14.1 16.2 18.5 13.2 11.7 14.6 17.2 11.8 11.0 9.9 13.8 13.8 13.6 20.5 14.8 13.2 16.9 17.0
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 2025
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
Cerberus 8.9 9.0 10.0 8.8 2.2 5.4 9.5 10.1 10.4 4.4 8.6 7.9 10.1 4.5 13.2 9.9 3.4 12.8 6.2 8.8 6.6 8.4 11.0 11.5 12.4 10.4 8.3 3.0 11.8
Coldstream 2.6 2.9 10.9 8.3 -0.5 -3.3 9.6 6.0 4.3 1.4 1.2 5.0 9.5 4.6 13.3 13.5 7.4 0.8 11.9 7.2 9.5 5.4 6.6 10.8 8.9 12.5 2.0 8.8 0.7 12.6
Essendon Airport 7.4 8.7 10.4 9.3 2.3 2.3 13.1 11.9 10.5 5.9 8.1 5.5 10.7 9.4 12.3 14.8 9.2 5.6 12.1 7.3 9.9 6.5 7.4 11.9 10.8 12.5 8.2 9.0 5.3 13.1
Ferny Creek 5.6 6.5 8.6 5.3 2.0 4.6 11.4 9.2 7.5 4.3 4.3 5.1 6.7 8.8 11.9 10.3 4.6 4.7 9.9 3.9 6.2 3.9 4.0 7.4 7.5 8.8 6.0 6.7 5.8 10.9
Frankston (Ballam Park) 8.0 8.3 10.5 9.4 3.3 2.3 11.7 10.7 10.5 5.6 6.8 8.0 10.4 8.7 14.0 13.5 9.8 5.3 12.6 8.0 9.4 5.3 7.0 11.6 11.3 12.9 10.5 9.8 5.5 13.2
Laverton RAAF 6.7 7.9 11.6 9.4 1.5 1.6 13.1 10.5 10.6 4.6 8.8 4.7 9.0 9.1 12.7 15.2 8.2 4.2 13.0 6.9 10.0 4.6 6.6 11.9 11.2 13.5 7.4 8.9 4.6 13.1
Melbourne (Olympic Park) 9.7 8.7 11.6 10.6 4.2 3.7 9.7 13.1 10.8 7.6 9.0 7.4 11.3 10.8 14.4 15.7 10.2 6.4 13.6 8.4 10.5 7.9 8.6 12.9 11.6 13.2 10.9 10.6 6.4 13.4
Melbourne Airport 6.3 7.6 9.0 8.1 1.3 1.0 13.3 10.9 8.3 4.9 7.4 5.6 9.5 7.9 10.7 13.7 7.7 4.9 11.5 6.8 8.0 6.0 6.3 11.6 9.9 11.8 6.4 6.7 4.7 12.5
Moorabbin Airport 8.9 9.4 10.6 9.6 3.2 0.7 10.5 12.7 10.7 6.4 8.2 6.9 10.8 10.9 14.2 14.0 9.1 4.7 12.9 8.1 10.2 7.8 8.7 11.6 11.2 13.0 10.3 10.2 4.7 13.2
Point Cook RAAF 6.7 7.8 9.7 9.7 1.5 1.8 11.6 8.9 10.3 4.4 8.9 4.0 8.8 8.4 12.9 14.5 8.9 4.2 13.1 6.7 9.8 5.4 7.2 12.1 11.1 12.3 6.6 7.2 4.6 12.6
Scoresby Research Institute 5.5 8.0 11.0 8.8 1.4 0.2 12.7 8.6 10.3 4.1 3.9 7.9 10.5 9.7 14.6 13.7 7.5 3.2 12.4 7.7 9.7 6.3 7.3 10.9 11.0 12.1 6.2 7.3 3.9 13.8
Viewbank 7.6 7.3 11.9 9.7 1.0 1.0 8.5 13.2 10.9 4.8 7.1 5.5 10.8 8.5 11.9 14.7 9.2 4.1 11.8 7.3 10.2 6.9 6.8 12.3 11.3 12.7 8.0 9.6 3.8 14.2
Wallan (Kilmore Gap) 4.6 5.1 5.2 5.1 1.5 3.8 8.4 8.2 6.7 3.6 4.9 4.4 8.0 6.5 6.4 9.6 5.4 4.0 7.0 4.1 5.5 3.5 4.7 6.6 7.0 7.1 6.2 5.8 6.1 9.5
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 September 2025
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
Bonbeach (Carrum (Patterson River Countr - - - - - - - - 6.0 - - - - - - 2.0 - - - - - - 7.0 - - - - - - -
Cerberus 0.8 0.4 4.4 1.0 3.6 - - 9.2 2.6 0.4 2.0 - - - 0.2 0.6 2.6 - - 7.2 0.4 10.2 3.2 0.2 1.2 0.6 0.8 0.2 0.2 2.6
Cheltenham (Heatherton (Kingston Centre) 1.0 - 0.1 0.2 - - 0.8 - 0.5 - 0.1 - - - - - 1.1 - - - - 4.0 1.1 - 1.8 0.1 - - - -
Coldstream 2.0 0.2 - 0.6 1.4 0.2 - 1.0 - 0.2 - 1.4 0.6 - - 2.4 3.2 - - 1.2 - 5.4 4.0 - 1.4 - - - 0.2 -
Eltham 1.2 - - 0.8 - - - 4.4 - - - 0.4 - - - - 1.2 - - 0.8 0.2 4.2 - 0.8 - - - - 0.2
Essendon Airport 0.4 - - 0.4 1.4 - - 1.6 - 0.2 3.6 2.2 0.4 0.2 - - 0.8 0.2 - - - 2.0 0.4 - 2.0 - 0.4 0.2 - 0.6
Ferny Creek 3.8 - 0.2 4.6 6.4 - - 1.0 4.0 1.0 1.8 0.2 1.6 0.4 0.2 3.8 11.6 0.4 - 1.4 - 5.4 3.4 0.6 4.8 - 1.6 1.0 0.2 0.2
Frankston (Ballam Park) 0.8 0.2 0.2 1.0 5.4 - - 1.8 1.4 - 1.4 - - - - 0.6 1.6 - - 0.6 0.2 12.6 1.8 - 0.8 - - - - 0.6
Greenvale Reservoir - - - 0.4 0.8 0.2 - 2.0 0.2 - 2.8 2.8 0.8 0.2 - - - - - - 0.2 4.4 0.4 - 1.6 - - - - -
Hesket (Straws Lane) 1.6 - 0.8 2.0 0.2 - 1.0 10.2 - - 2.5 2.0 - - - 3.0 2.8 0.6 0.2 - 2.2 - 3.8 - - - - - - 0.8
Kinglake West - - 0.6 - 2.2 - 0.6 10.8 - - 1.4 1.8 2.8 - - 4.6 1.8 - - 1.8 0.4 8.8 4.0 - 2.2 - - 0.6 - -
Kinglake West (Wallaby Creek) - 0.2 - - 1.2 0.2 0.6 - - 0.2 1.8 3.0 - 0.2 3.2 1.4 - - 1.6 - 8.6 3.2 - 1.8 - - - 0.2 -
Laverton RAAF 0.6 - - 0.2 - - - 0.6 0.6 0.6 3.8 1.4 0.4 - - - 1.4 - - 0.6 - 0.8 0.6 - 2.4 - - - - 1.2
Macedon Forestry - - - - - 39.4 - 1.0 - - 15.0 - - - - - - - - - - - - - - 3.2
Melbourne (Olympic Park) 0.2 - 0.2 0.4 1.2 - - 0.6 1.2 0.2 1.0 0.4 - - - - 7.2 - - 0.2 - 2.2 0.6 - 1.0 - 0.2 - - 0.8
Melbourne Airport - - 0.2 0.2 1.2 - 0.2 2.8 - 0.2 2.2 2.4 0.4 0.2 - - - - - - 0.2 2.6 0.6 - 1.8 - - - - 0.4
Melbourne Botanical Gardens 0.4 0.1 0.4 0.6 1.3 - - 0.9 1.7 0.7 1.0 0.3 0.2 0.1 - - 6.4 0.2 - 0.4 - 1.4 0.8 - 1.4 - 0.4 0.2 - 1.1
Mitcham 2.2 - - 2.6 1.4 - - 0.6 1.4 0.4 1.0 - 0.4 - - 1.0 8.2 - 0.2 0.4 - 4.6 2.6 - 1.2 - 0.2 0.2 - -
Monbulk (Spring Road) - - - 2.6 13.0 - - 2.2 1.2 - - - 1.0 - - 4.2 11.4 - - 3.4 - 10.0 5.6 0.6 3.2 - - 1.4 - 1.0
Moorabbin Airport 1.0 - - 0.8 0.6 - - 0.6 1.8 0.2 1.4 0.2 - - - 0.6 1.6 - - 0.2 0.2 2.8 1.0 - 2.0 0.2 - - - 1.0
Mornington 7.0 2.0 - - - - - 7.1 0.7 0.8 - - 2.2 0.4 1.0 0.8 0.1 7.8 3.1 - 2.1 1.0 2.0 2.0
Mount Waverley (Riversdale Golf Club) - - 1.8 - - - 1.0 2.2 1.0 0.8 - - - - - 7.2 - - 1.1 0.2 2.0 4.0 - - - - 0.2 - - 4.0
Newham (Cobaw) - - - - 1.8 - 2.4 15.2 - - - 0.6 - - - 5.0 - - - 2.0 0.4 1.8 - - - - - - - 1.0
Oakleigh (Metropolitan Golf Club) 1.2 0.8 0.8 1.5 - - - 0.6 1.4 - 3.0 - - - - 1.0 7.2 - - - 4.0 1.0 4.4 - 2.0 - - - - -
Point Cook RAAF 1.0 0.6 0.4 - 1.0 - - 0.8 0.6 - 3.4 1.2 0.2 - - - - - - 0.4 0.2 0.2 1.0 - 1.0 - - - - 0.8
Preston Reservoir 1.0 0.4 - 0.8 1.0 - - 1.0 - 0.2 1.0 1.4 0.4 - - - 1.0 - - 0.6 - 1.8 1.0 - 1.4 - 0.6 - - -
Rosebud (Country Club) 0.4 1.2 6.2 1.8 2.6 - - 5.8 2.4 0.4 3.0 - - - - - 1.0 - - 4.0 1.0 4.2 5.8 - 1.6 1.8 - 1.0 0.8 3.8
Scoresby Research Institute 1.8 - - 2.8 2.6 - - 0.2 1.2 0.2 1.4 - - - - 1.6 5.6 - - 0.6 - 3.4 3.0 - 1.8 - 0.6 - - 0.2
Springvale Necropolis 8.2 - - 2.4 - 2.0 - 7.2 - - - - 9.5 - - - - - - 13.7
Tarrawarra Monastery 1.0 0.2 - 2.2 4.0 0.1 - 3.2 - - - 1.2 - 1.2 - 2.0 5.6 0.1 - 1.2 - 5.6 4.2 - 0.3
Toorourrong Reservoir (Toorourrong) 0.2 0.2 - - 0.4 - 0.2 10.4 - - - 1.4 0.8 - - 1.6 4.4 - - 1.2 - 7.4 1.8 - 0.4 - - - - -
Upper Plenty - - - - 0.6 0.2 - 10.0 - - 0.6 - 0.2 - 0.4 1.6 3.8 - - 0.6 - 4.4 0.4
Viewbank 0.8 0.2 - 1.4 1.4 - - 1.0 - 0.2 0.2 0.6 0.8 - - - 2.2 - - 0.6 - 4.4 1.4 - 1.2 - 0.4 - - -
Wallan - - - - - - - 9.6 - - 3.2 1.6 - - - - 6.6 - - 0.4 - 3.8
Wallan (Kilmore Gap) 0.2 2.2 - - 0.8 0.2 0.2 11.4 - - 2.6 2.4 0.2 - 0.2 3.2 1.0 - - - - 3.4 0.6 - 0.2 0.2 - - - 0.4
Willowmavin (Avalon Station) - 2.4 - 0.4 0.8 0.2 1.0 17.0 - - 0.6 0.6 - 0.2 - 6.6 2.4 0.2 - 0.6 - 2.6 0.8 - 0.4 0.2 - - - 0.6
Woodend 1.6 0.2 0.8 0.1 0.6 0.2 1.2 10.4 0.6 0.2 1.8 1.8 2.6 0.2 0.2 - 7.6 - 0.2 2.4 3.0 - 1.4 - - - - - - 1.8
Yan Yean - - - 0.2 0.6 - - 2.8 - - - 2.0 1.6 - - 0.4 6.0 - - 0.6 0.2 5.4 1.0 - 0.2 - - - - -
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 Melbourne 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 Melbourne “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 on Wednesday 1 October 2025. 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, excluding the current year. The length of record can vary widely from site to site. Averages are not shown for sites with fewer 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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Climate