Sunday 2 August 2026 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0

Greater Perth in July 2026

Rainfall

  • Rainfall totals for July were below average at most sites across Greater Perth.
  • July rainfall totals ranged from around 30% to around 80% of average across Greater Perth.

Temperature

Perth Metro

  • Total rainfall for Perth Metro was 56.8 mm, which is 39% of the long-term average of 147.0 mm.
  • The mean daily maximum temperature for Perth Metro was 19.7 °C, which is 1.2 °C above the long-term average of 18.5 °C.
  • The warmest day was 25.7 °C on the 15th, and the coolest day was on the 3rd when the temperature reached 16.4 °C.
  • The mean daily minimum temperature for Perth Metro was 7.9 °C, which is 0.2 °C below the long-term average of 8.1 °C.
  • The coldest morning was 3.6 °C on the 25th, and the warmest morning was on the 17th when the minimum temperature was 15.1 °C.

Extremes Records Summaries Daily observations Important notes the top

Extremes in July 2026
Hottest day 25.7 °C at Perth Metro on the 15th
Warmest days on average 20.1 °C at Perth Airport M.O.
Coolest days on average 16.4 °C at Bickley
Coldest day 12.5 °C at Karnet on the 28th
12.5 °C at Bickley on the 3rd
Coldest night 1.3 °C at Jandakot Aero on the 25th
Coolest nights on average 7.0 °C at Jandakot Aero
Warmest nights on average 13.0 °C at Rottnest Island
Warmest night 16.9 °C at Rottnest Island on the 16th
Warmest on average overall 15.7 °C at Rottnest Island
Coolest on average overall 12.0 °C at Bickley
Wettest overall 101.6 mm at Pinjarra Refinery
Wettest day 50.4 mm at Pinjarra Refinery on the 17th
Strongest wind gust 78.0 km/h at Rottnest Island on the 16th

Extremes Records Summaries Daily observations Important notes the top

Record highest July temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
July
Bickley 22.2 on the 15th 22.0 on 24 Jul 1999 33 15.1


Record highest July mean maximum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
July
Perth Airport M.O. 20.1 19.7 in 2007 83 18.0
Karnet 16.8 =16.8 in 1999 61 15.5
Jandakot Aero 19.4 19.1 in 2024 37 18.1
Perth Metro 19.7 19.5 in 2024 33 18.5
Bickley 16.4 16.1 in 2020 33 15.1


Record highest July daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
July
Pearce RAAF 16.5 on the 16th 16.0 on 16 Jul 1977 66 8.5
Bickley 14.1 on the 17th 14.0 on 02 Jul 2014 33 7.4


Extremes Records Summaries Daily observations Important notes the top

Summary statistics for July 2026
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
July
2026		 Diff
from
average		 Highest for
July
2026		 Mean for
July
2026		 Diff
from
average		 Lowest for
July
2026		 Total for
July
2026		 Average
for
July		 Rank of
July
2026		 Fraction of
July
average
Bickley 16.4 +1.3 22.2 15th 7.8 +0.4 4.5 29th 79.0 220.6 v low 36%
Garden Island HSF 18.6 +0.7 22.8 15th 11.1 -0.3 7.0 8th 64.8 131.9 v low 49%
Jandakot Aero 19.4 +1.3 25.1 15th 7.0 -0.2 1.3 25th 55.6 175.0 v low 32%
Karnet 16.8 +1.3 22.8 15th 7.4 +1.0 3.4 13th 72.3 219.8 v low 33%
Mandurah 18.0 +0.5 20.0 14th 11.0 +0.2 7.5 29th 81.8 118.6 low 69%
Millendon (Swan Valley) 19.5 24.7 15th 7.3 2.6 14th 42.4
Pearce RAAF 19.5 +1.5 25.1 15th 8.1 -0.4 2.4 11th 45.4 133.9 v low 34%
Perth Airport M.O. 20.1 +2.1 25.6 15th 7.9 -0.2 3.0 12th 49.4 154.0 v low 32%
Perth Metro 19.7 +1.2 25.7 15th 7.9 -0.2 3.6 25th 56.8 147.0 v low 39%
Rottnest Island 18.3 +0.4 21.8 15th 13.0 +0.5 9.9 1st 94.0 114.1 average 82%
Swanbourne 19.3 +0.9 25.4 15th 9.9 0.0 6.2 28th 56.0 153.8 v low 36%

Extremes Records Summaries Daily observations Important notes the top

Daily maximum temperatures for July 2026
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 31
Bickley 14.7 12.6 12.5 15.7 17.0 16.1 17.7 19.1 16.0 14.2 15.2 16.5 17.4 22.2 20.8 17.9 15.0 15.7 14.6 14.3 14.9 15.6 15.4 17.4 15.1 15.3 13.5 16.2 20.0 20.3
Garden Island HSF 18.2 16.0 15.9 19.2 19.1 18.8 17.9 20.1 20.7 17.3 16.6 17.4 18.1 20.5 22.8 20.3 20.4 17.8 18.0 18.0 17.5 17.3 18.5 18.4 19.4 17.8 16.3 16.7 19.5 20.1 21.1
Jandakot Aero 18.6 16.1 15.7 19.2 20.5 19.0 20.8 21.5 22.1 18.6 17.2 18.1 18.6 20.7 25.1 22.3 21.0 18.6 18.4 18.3 17.8 17.8 18.5 18.5 20.8 18.9 17.8 16.3 19.4 22.1 22.1
Karnet 15.5 13.0 12.8 16.5 17.7 14.6 19.1 19.0 20.2 16.3 14.2 15.6 17.2 18.2 22.8 20.0 19.0 15.4 15.8 15.2 15.0 15.0 15.5 18.0 15.4 16.1 17.0 20.3 22.0
Mandurah 18.2 16.3 15.9 18.0 17.6 17.8 18.4 18.5 17.8 16.9 17.4 18.1 20.0 19.8 18.7 19.2 17.6 17.5 17.1 17.1 17.0 18.3 17.9 18.9 17.5 17.0 16.3 18.8 19.1 19.9
Millendon (Swan Valley) 18.2 16.2 16.0 18.6 20.0 20.0 21.9 23.0 22.6 19.4 17.8 18.3 19.0 21.0 24.7 22.9 20.2 18.8 18.1 17.9 16.2 17.8 18.0 18.1 20.2 19.1 18.7 16.6 19.2 22.8 23.6
Pearce RAAF 17.6 15.8 16.8 19.0 20.8 19.9 21.7 22.8 22.4 19.6 18.0 17.3 18.4 21.4 25.1 24.0 20.2 18.7 18.0 18.0 16.9 17.2 17.8 18.1 20.2 18.7 17.9 16.5 19.7 22.6 23.3
Perth Airport M.O. 19.0 16.8 16.3 18.8 20.5 20.1 22.0 22.9 22.9 20.2 19.0 18.9 20.1 20.9 25.6 23.5 20.6 19.1 19.0 19.0 18.7 18.3 18.8 18.5 21.4 19.7 19.1 17.6 19.8 23.3 23.6
Perth Metro 18.0 16.4 16.4 18.7 20.4 19.0 21.7 22.8 22.8 19.5 17.1 18.3 19.0 20.7 25.7 23.5 20.5 19.0 19.1 19.2 17.9 18.4 18.4 18.6 21.3 18.8 18.0 16.9 19.4 23.2 22.9
Rottnest Island 18.0 15.7 15.2 18.7 18.9 17.4 17.3 20.4 20.7 17.9 16.3 17.4 17.2 19.6 21.8 20.9 20.1 18.4 18.8 18.4 16.8 16.0 17.4 17.9 19.8 18.2 16.3 15.6 18.3 20.6 21.6
Swanbourne 18.1 16.1 16.1 18.9 20.1 18.7 19.9 20.4 21.0 18.2 17.3 18.3 19.1 20.9 25.4 22.5 21.6 18.6 18.4 18.5 17.4 17.9 18.6 18.7 21.0 18.4 17.7 16.9 19.9 21.5 21.9
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 July 2026
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 31
Bickley 7.3 7.4 9.0 6.4 8.2 10.1 8.3 8.8 11.1 7.0 7.7 6.8 5.5 7.7 10.6 14.1 11.5 7.8 8.2 8.1 5.5 5.0 4.9 4.5 7.4 7.1 6.1 4.5 6.6 9.8
Garden Island HSF 10.4 11.8 13.3 10.2 13.3 12.5 11.7 7.0 10.2 14.1 10.7 10.5 7.4 8.6 12.7 16.1 14.4 15.6 11.6 9.2 10.7 9.6 9.3 8.7 9.5 13.2 12.5 8.8 8.1 11.6 11.9
Jandakot Aero 7.4 7.4 11.0 5.9 10.8 9.4 9.1 5.0 4.9 11.4 4.3 4.5 2.6 3.8 9.1 12.7 14.1 14.4 8.0 8.1 5.5 4.9 4.4 5.7 1.3 10.1 6.3 3.2 3.9 4.5 3.4
Karnet 5.7 7.0 9.5 6.2 9.2 9.7 9.0 6.6 6.5 9.1 5.0 7.0 3.4 6.5 8.5 12.4 13.9 12.7 7.8 6.5 5.0 5.5 5.1 4.2 7.9 7.9 5.5 5.4 6.0
Mandurah 11.9 10.7 11.7 8.8 12.6 12.7 11.0 10.9 13.8 10.3 12.4 9.0 8.7 11.4 15.7 14.5 15.1 11.8 10.7 10.6 9.8 8.5 9.1 8.0 12.0 10.8 8.1 7.5 9.6 11.8
Millendon (Swan Valley) 6.6 7.4 10.9 6.1 10.4 10.7 10.6 5.8 4.4 9.9 2.7 2.9 2.6 2.6 9.8 16.2 14.8 13.9 8.6 5.5 4.3 8.6 3.7 6.9 4.8 7.4 6.6 2.7 6.9 7.9 2.8
Pearce RAAF 8.2 9.2 11.5 6.5 12.4 12.0 9.5 8.3 6.3 10.2 2.4 3.0 3.2 3.5 12.4 16.5 15.9 13.9 10.5 5.3 4.9 7.4 3.0 7.0 8.2 8.9 8.1 2.6 5.9 10.9 2.7
Perth Airport M.O. 7.0 7.4 11.1 7.1 10.1 11.3 10.2 8.8 6.5 11.5 3.5 3.0 3.5 4.4 11.6 11.5 14.6 14.2 8.9 7.6 5.8 6.2 4.3 7.1 7.5 10.1 6.0 3.1 7.2 9.5 5.8
Perth Metro 9.0 8.5 11.1 6.2 10.0 11.3 8.9 6.5 6.2 11.8 5.4 4.2 4.2 4.5 7.8 14.9 15.1 14.3 9.1 8.3 6.8 5.5 5.0 5.1 3.6 10.9 8.6 3.7 5.7 6.3 6.2
Rottnest Island 9.9 13.2 13.8 12.6 13.8 13.8 12.9 13.3 13.1 15.2 12.2 12.4 12.0 11.4 13.8 16.9 15.7 15.1 12.8 12.1 14.0 11.2 11.2 12.1 12.6 14.4 12.5 11.2 11.2 12.9 14.5
Swanbourne 10.6 10.0 11.9 8.5 12.1 12.5 9.3 8.7 9.4 12.5 8.3 7.4 7.2 7.5 11.6 15.3 14.9 15.2 10.3 9.6 8.8 8.0 6.6 7.9 7.4 12.3 10.2 6.2 7.6 9.5 8.6
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 July 2026
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 31
Anketell 2.6 3.7 0.1 - - 8.4 0.1 - - 4.5 → 0.9 - - - - 20.6 4.9 2.3 - - 0.8 0.1 - - 2.5 0.2 - - - -
Araluen - 2.8 - → → 10.1 - - - 4.8 - - - - - - 30.1 → → 22.2 4.1 - - - → → 4.0
Bickley 4.2 3.0 - 0.2 - 10.6 - - - 3.8 0.8 - - 0.2 0.2 - 29.0 19.2 0.6 - - 0.4 - 0.2 - 5.6 0.4 0.2 0.2 - 0.2
Bungendore 1.4 1.8 - - - 9.2 - 0.2 - 8.6 0.2 - - - - - 0.4 0.2 - 0.2 0.4 - - - - - - - -
Chidlow 2.6 2.0 0.2 → → 0.8 - - - 1.1 0.4 - - - - - 8.4 13.2 → 1.2 - 1.4 - - → → 2.2
Garden Island HSF 7.6 1.6 - - - 13.4 0.2 - 0.2 3.4 - - - - - - 22.6 4.0 3.4 2.8 1.4 1.2 - - - 2.2 0.6 0.2 - - -
Gidgegannup 3.2 4.4 - - - 1.0 0.2 - 0.2 1.2 0.2 - - 0.2 - - 6.8 13.8 2.0 - 0.2 0.4 - - - 0.4 2.2 - 0.2 - 0.2
Huntly 4.0 16.8 0.2 - - 14.0 4.0 - - - 4.0 - 0.8 - - - 33.0 10.0 1.5 0.2 - 7.0 -
Jandakot Aero 2.6 1.6 - - - 13.0 0.2 - - 5.4 - - - - - - 15.4 9.8 1.8 0.8 - - 0.2 - - 4.4 0.4 - - - -
Jarrahdale 2.8 5.0 - 0.2 10.2 - - - 0.2 - -
Karnet 2.0 6.3 - - - 13.2 - - - 2.7 0.2 - - - - - 26.7 11.4 3.8 - - 0.6 - - - 5.4 - - - - -
Karragullen North 4.6 - - - - 15.0 - - - 4.4 0.4 - - - - - 30.6 17.0 1.0 - - - - - - 4.8 - - - - -
Maida Vale 4.0 1.8 - - - 12.0 - - - 1.2 - - - - - - 22.6 10.0 2.0 - - - - - - 3.6 0.2 - - - -
Mandurah 0.4 2.0 - - - 17.2 - 0.2 - 5.6 - - - - - - 44.0 5.4 0.6 1.0 2.2 0.2 - - - 2.4 0.6 - - - -
Millendon (Swan Valley) 6.4 2.2 - - - 3.2 0.2 - - 1.8 - - - - 0.2 - 10.6 11.0 1.0 - 0.2 2.4 - - - 2.0 1.0 - 0.2 - -
Mount Solus 2.0 12.6 - - - 9.2 0.6 0.2 - 2.6 0.8 - 0.2 0.2 - - - 1.4 - - - 0.6 - 0.2 0.2 - 0.2 0.2 - - -
Muchea 4.8 9.2 - - - 2.4 - - - 0.6 - - - - - - 5.0 9.6 1.6 0.2 - 0.4 0.2 - - 0.2 2.8 - - - -
Mundaring 4.6 3.0 0.2 - - 4.4 - - - 3.2 0.4 0.2 - - - - 13.4 16.8 1.0 0.2 0.2 - - - - 4.2 1.0 0.2
Pearce RAAF 4.4 8.6 - - - 6.0 - - - 2.4 - - - - - - 7.2 11.4 2.4 1.2 - 0.2 - - - 0.2 1.4 - - - -
Perth Airport M.O. 3.2 4.2 - - - 6.0 - - - 0.2 0.4 - - - - - 22.0 9.4 0.8 - - 0.4 - - - 2.6 0.2 - - - -
Perth Metro 6.2 6.0 - - 0.2 6.8 - 0.2 - 2.2 0.2 - - 0.2 - - 14.8 12.0 0.8 1.0 0.2 1.4 - - - 4.4 0.2 - - - -
Pinjarra Refinery 3.2 9.0 0.2 - - 13.2 - - - 5.8 0.2 0.1 - - - - 50.4 11.2 0.4 1.2 0.1 - - - - 6.0 0.4 - - - 0.2
Pinjarra South 2.8 10.2 - - - 16.8 - - - 4.2 - - - - 0.2 - 45.0 5.2 0.2 0.6 0.2 - - - - 5.0 0.4 - - - -
Roleystone 4.0 2.8 - - - 9.6 0.4 - - 6.4 0.4 - - - - - 30.0 20.6 0.6 - - 0.6 - 0.4 - 6.2 0.6 0.4 0.2 - 0.6
Rottnest Island 9.0 6.2 - - 0.6 15.2 0.2 - - 4.8 0.2 - - - - - 38.6 4.4 0.4 9.2 0.2 0.2 - - - 2.2 2.4 0.2 - - -
Serpentine -
Swanbourne 7.2 1.4 - - - 15.0 0.4 0.2 - 2.8 - - - 0.2 - - 17.2 6.4 1.0 1.0 - 1.4 - - - 1.6 0.2 - - - -
Tamala Park (Mindarie) 18.6 10.1 - - - 9.8 - - - - - - - - - - 38.0
Wanneroo 18.8 11.6 - → → 6.4 0.2 - - 5.6 → → 1.2 - - - 19.8 → → 15.6 0.8 2.2 - - → → 1.8 - 0.1
Werribee 1.6 1.4 - - - 0.4 - 0.2 - 0.6 0.2 - 0.2 - 0.2 - 2.4 9.6 0.6 0.2 - 0.4 - - 0.2 0.2 2.0 0.2 - 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

Extremes Records Summaries Daily observations Important notes the top

Notes

The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Perth 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 Perth “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 Sunday 2 August 2026. 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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