Western Australia in May 2026

Rainfall

Temperature

  • Mean maximum temperatures in May were above to very much above average for the south west and some coastal parts of the Central West, Gascoyne and Kimberley districts, and below average for the interior and adjacent parts of the Kimberley, Pilbara and Goldfields districts.
  • Western Australia's area-averaged mean maximum temperature was 25.5 °C, 0.28 °C above the 1961-1990 average.
  • Western Australia had its lowest mean maximum temperature for May since 2015.
  • Mean minimum temperatures in May were above to very much above average for south-eastern parts and for areas of the Kimberley, Pilbara and Interior districts, and below to very much below average for south western parts, coastal areas of the Gascoyne and elevated central regions.
  • Western Australia's area-averaged mean minimum temperature was 12.5 °C, 0.18 °C below the 1961-1990 average.
  • A few sites had their coldest May night (lowest daily minimum temperature) on record.
  • Western Australia's area-averaged mean temperature was 19.0 °C, 0.05 °C above the 1961-1990 average.
  • Paynes Fine had its lowest May mean temperature for at least 20 years.

Events

  • Settled and dry conditions brought several cold nights to southern Western Australia between 23 and 25 May.
  • An unusually strong cold front and deep low pressure system brought unseasonable thunderstorms and damaging to destructive winds to south-west Western Australia on 30 and 31 May.
  • For more details, visit the May national climate summary.

Extremes in May 2026
Hottest day 37.5 °C at Wyndham Aero on the 4th
Warmest days on average 33.9 °C at Yampi Sound (Defence)
Coolest days on average 18.2 °C at Shannon
Coldest day 12.5 °C at Rocky Gully on the 1st
Coldest night -3.2 °C at Wandering on the 24th
Coolest nights on average 4.1 °C at Wandering
Warmest nights on average 25.9 °C at Rowley Shoals
Warmest night 27.9 °C at Rowley Shoals on the 3rd
Warmest on average overall 28.5 °C at Troughton Island
Coolest on average overall 12.1 °C at Wandering
Wettest overall 141.2 mm at North Walpole
Wettest day 69.2 mm at Worsley Downs on the 28th
Strongest wind gust 135.0 km/h at Cape Naturaliste on the 31st

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 May daily rainfall
New record
(mm)
Old
record
Years of
record
Average for
May
Laverton Aero 40.8 on the 1st 25.0 on 02 May 2001 32 12.8
Old Eucla 33.4 on the 13th 30.2 on 11 May 2025 25 21.6
Parry Creek Farm 64.0 on the 18th 62.0 on 28 May 2025 24 12.5



Record highest May total rainfall
New record
(mm)
Old
record
Years of
record
Average for
May
Parry Creek Farm 64.4 63.8 in 2025 23 12.5



Highest May total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
May
Laverton Aero 41.6 72.2 in 2001 13.7

note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported




Record lowest May temperature
New record
(°C)
Old
record
Years of
record
Average for
May
Wagin -1.0 on the 23rd -0.7 on 25 May 2012 56 8.0
Learmonth Airport 7.4 on the 26th 7.6 on 03 May 1986 52 16.0
Pardoo Station 8.6 on the 25th 9.0 on 22 May 1994 28 17.1



Lowest May mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
May
Paynes Find 15.0 13.7 in 2000 16.4

note: there may be gaps in the historical record at some sites, so it is possible more recent lower values have gone unreported





Summary statistics for May 2026
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
May
2026
Diff
from
average
Highest for
May
2026
Mean for
May
2026
Diff
from
average
Lowest for
May
2026
Total for
May
2026
Average
for
May
Rank of
May
2026
Fraction of
May
average
North Kimberley (district 01)
Doongan 29.9 -1.3 34.6 3rd 16.6 +1.8 10.0 31st 78.2 15.9 high 492%
Kalumburu 33.1 -0.4 36.5 4th 18.7 +1.6 11.6 30th 1.2 18.9 average 6%
Troughton Island 31.4 +0.2 33.7 13th 25.6 +0.1 22.6 31st 0.0 34.8 lowest 0%
Truscott 31.5 -0.6 33.5 4th 21.9 +0.5 16.2 27th 0.2 17.9 average 1%
Wyndham Aero 32.9 -1.2 37.5 4th 20.0 +0.9 12.5 29th 35.8 13.8 high 259%
East Kimberley (district 02)
Halls Creek Airport 28.7 -1.6 34.4 3rd 15.3 +0.3 7.4 29th 59.2 12.0 highest 493%
Kununurra Aero 31.9 -1.0 36.6 3rd 19.2 +0.7 11.1 29th 29.6 7.3 high 406%
West Kimberley (district 03)
Broome Airport 31.1 -0.6 34.6 14th 18.2 0.0 11.4 30th 5.2 28.2 average 18%
Curtin Aero 31.9 -1.3 35.8 5th 18.3 -0.8 9.9 31st 4.0 16.1 average 25%
Cygnet Bay 29.9 -1.1 33.8 8th 21.4 +2.1 14.5 30th 7.8 38.6 average 20%
Fitzroy Crossing Aero 32.1 -1.2 36.3 3rd 17.2 +1.2 10.3 30th 1.2 15.4 average 8%
Yampi Sound (Defence) 33.9 37.1 3rd 16.8 9.0 27th 11.0
De Grey (district 04)
Bedout Island 29.2 +0.5 31.7 1st 24.3 +0.6 22.5 6th
Karratha Aero 29.5 -0.6 34.3 1st 18.1 -0.2 11.3 27th 0.0 30.4 lowest 0%
Legendre Island 27.7 -0.7 32.0 1st 22.3 +0.2 16.9 28th
Mandora 31.7 -0.6 36.3 13th 17.2 +0.2 9.4 31st 0.0 25.1 lowest 0%
Marble Bar 29.7 -1.4 36.4 1st 16.6 -0.4 10.3 27th 28.6 12.8 high 223%
Pardoo Station 29.7 -2.3 33.8 15th 16.3 -0.8 8.6 25th 49.2 23.8 high 207%
Port Hedland Airport 30.7 -0.1 34.9 2nd 17.2 -0.2 10.1 25th 19.4 26.6 average 73%
Roebourne Aero 30.7 -0.9 35.5 15th 16.1 -0.7 8.5 28th 0.0 37.4 lowest 0%
Fortescue (district 05)
Barrow Island Airport 27.0 -0.5 30.3 2nd 20.8 -0.5 14.6 28th 0.0 56.3 lowest 0%
Karijini North 28.5 33.9 1st 16.6 9.7 28th 0.0
Learmonth Airport 28.8 +0.1 31.7 14th 14.6 -1.4 7.4 26th 2.0 41.3 low 5%
Mardie 31.4 -0.2 35.1 2nd 17.2 +0.2 10.3 25th 0.0 38.0 lowest 0%
Onslow Airport 29.8 +0.3 33.7 2nd 18.0 +0.5 12.0 28th 0.4 49.9 v low 1%
Thevenard Island 28.3 -0.5 31.5 14th 21.0 -0.3 14.6 26th 0.0 45.1 lowest 0%
West Gascoyne (district 06)
Carnarvon Airport 28.2 +1.7 34.0 4th 14.0 -0.8 7.9 25th 17.0 32.5 average 52%
Murchison 25.7 -0.6 30.2 21st 13.1 16.5 average 79%
Shark Bay Airport 26.9 -0.7 31.4 13th 13.7 -0.9 6.3 26th 30.2 22.5 high 134%
East Gascoyne (district 07)
Newman Aero 26.3 -0.8 32.4 31st 11.7 -0.1 4.4 27th 0.0 17.9 lowest 0%
Paraburdoo Aero 28.7 -0.4 32.7 30th 15.7 +0.9 9.5 11th 0.0 18.4 lowest 0%
Murchison (district 07A)
Meekatharra Airport 24.1 +0.1 30.5 30th 11.9 -0.2 5.2 24th 3.0 21.3 low 14%
Mount Magnet Aero 22.9 -1.2 27.6 21st 11.0 -0.6 4.9 24th 5.6 16.0 average 35%
Paynes Find 22.3 -1.1 27.4 21st 7.9 -1.5 1.9 24th 17.4 34.4 average 51%
North Coast (district 08)
Dalwallinu 22.1 -0.2 27.7 13th 7.5 -2.2 2.4 24th 20.8 32.9 average 63%
Geraldton Airport 25.7 0.0 30.0 19th 11.6 -0.9 5.2 24th 47.4 36.1 high 131%
Kalbarri 26.4 +0.2 30.4 19th 12.6 -0.8 6.6 23rd 38.6 51.8 average 74%
Morawa Airport 23.7 -0.5 28.4 20th 8.7 -1.7 2.4 23rd 28.6 34.1 average 84%
Mullewa 24.1 +0.2 28.1 12th 10.8 -0.5 4.5 23rd 26.4 44.8 average 59%
North Island 24.5 -0.1 27.5 12th 17.7 -0.8 10.1 26th 45.2 39.1 average 116%
Wongan Hills 22.2 +0.5 26.8 20th 8.7 -1.2 1.9 23rd 22.8 50.5 low 45%
Central Coast (district 09)
Badgingarra Research Stn 22.3 -0.3 27.9 13th 10.3 -0.4 5.6 2nd 35.2 65.4 low 54%
Bickley 19.2 -0.2 25.3 12th 9.7 -0.5 5.1 24th 45.0 128.1 v low 35%
Garden Island HSF 21.1 -0.5 26.2 11th 12.5 -1.4 7.7 23rd 40.4 73.6 low 55%
Gingin Aero 22.3 -0.6 28.2 12th 6.8 -2.2 -1.0 24th 46.4 71.2 low 65%
Jandakot Aero 22.1 -0.1 27.8 12th 7.5 -2.0 0.5 24th 22.0 102.9 lowest 21%
Jurien Bay 23.8 +0.4 28.4 19th 10.1 -1.7 4.2 2nd 30.2 74.1 low 41%
Karnet 19.5 +0.2 25.2 12th 8.5 -0.6 2.2 23rd 43.3 136.1 v low 32%
Lancelin (Defence) 23.1 28.4 20th 11.1 5.7 8th 48.2
Millendon (Swan Valley) 22.6 28.6 12th 8.1 1.1 24th 25.2
Pearce RAAF 22.8 +0.6 28.7 12th 9.0 -1.7 2.0 23rd 21.8 81.7 v low 27%
Perth Airport 22.9 +1.0 28.9 12th 9.0 -1.4 2.8 23rd 31.8 95.9 low 33%
Perth Airport Comparison 22.4 28.5 12th 9.5 3.2 23rd 31.8
Perth Metro 22.2 -0.2 28.3 12th 8.9 -1.7 2.5 24th 53.2 85.5 low 62%
Rottnest Island 21.1 -0.1 25.4 12th 14.8 -0.5 12.4 2nd 6.8 70.0 lowest 10%
Swanbourne 21.7 -0.6 26.9 11th 11.6 -1.0 6.1 24th 35.4 86.5 low 41%
South Coast (district 09A)
Albany 19.4 +0.7 26.8 12th 11.1 +0.3 7.7 10th 83.6 114.0 average 73%
Albany Airport 19.8 0.0 26.9 12th 9.0 -0.4 3.3 25th 88.6 79.1 high 112%
Bridgetown 19.5 -0.2 24.9 12th 5.4 -1.3 -0.4 25th 67.4 93.0 average 72%
Bunbury 20.5 -0.6 23.6 13th 8.4 -0.9 2.1 23rd 51.6 97.7 low 53%
Busselton Aero 20.0 -0.6 23.3 13th 7.6 -1.4 0.7 23rd 78.8 95.7 average 82%
Cape Leeuwin 20.2 +0.9 24.5 11th 14.0 +0.2 11.0 1st 53.0 134.1 v low 40%
Cape Naturaliste 20.3 +1.0 25.2 12th 12.9 +0.2 9.0 23rd 79.2 112.6 low 70%
Collie East 20.3 +0.1 25.6 12th 4.6 -1.5 -2.0 25th 68.4 89.7 average 76%
Donnybrook 22.1 +2.0 26.5 12th 8.4 +0.2 3.4 25th 36.2 132.1 v low 27%
Dwellingup 19.6 +0.9 25.3 12th 6.6 -1.2 0.7 24th 93.8 153.4 low 61%
Esperance 20.7 +0.1 27.9 21st 11.2 +0.1 8.2 8th 56.6 69.6 average 81%
Esperance Aero 19.7 -0.6 26.2 21st 10.2 -0.3 7.7 30th 51.2 62.8 average 82%
Hopetoun North 20.6 -0.5 28.8 21st 10.5 +0.1 6.3 9th 70.6 43.4 high 163%
Jarrahwood 20.3 +0.2 24.1 12th 5.2 -1.5 -1.0 25th 84.4 119.8 low 70%
Mandurah 20.6 -0.6 23.2 8th 12.8 -0.7 8.2 24th 36.6 81.1 v low 45%
Manjimup 18.4 +0.6 24.5 12th 8.7 -0.2 5.3 24th 99.0 126.5 average 78%
Mount Barker 20.1 +2.2 25.0 12th 9.9 +1.1 6.0 28th 33.9 80.7 v low 42%
North Walpole 19.3 +0.1 24.9 12th 11.0 -0.3 6.9 23rd 141.2 115.8 high 122%
Rocky Gully 18.4 -0.2 25.4 12th 8.9 -0.3 3.6 23rd 77.4 75.8 average 102%
Shannon 18.2 0.0 23.8 12th 9.0 +0.1 6.4 25th 131.6 115.3 average 114%
Windy Harbour 19.5 -0.4 24.8 12th 10.5 -0.2 6.2 9th 76.2 142.0 v low 54%
Witchcliffe West 19.2 23.4 12th 10.0 4.3 25th 70.6
North Central (district 10)
Bencubbin 21.5 +0.5 27.0 21st 7.7 -1.5 2.0 23rd 1.4 35.5 v low 4%
Cunderdin Airfield 21.8 -0.3 27.6 20th 6.5 -1.6 -0.5 23rd 26.6 29.7 average 90%
Goomalling 24.0 +1.7 28.0 12th 9.5 +0.1 4.8 4th 3.8 46.3 v low 8%
Kellerberrin 23.0 +2.0 27.0 12th 6.7 -1.4 0.0 25th 2.0 40.4 v low 5%
Merredin 22.1 +1.2 22.2 27th 10.7 +1.7 9.7 26th 1.4 39.8 v low 4%
Northam 22.0 +0.7 27.8 20th 5.8 -2.6 -0.4 24th 17.1 54.1 low 32%
York 21.8 -0.3 27.5 20th 4.8 -2.1 0.0 25th 18.8 44.9 low 42%
South Central (district 10A)
Beverley 21.6 0.0 26.8 12th 5.5 -2.3 -1.4 24th 9.0 52.7 v low 17%
Brookton 21.3 +0.7 27.0 13th 5.5 -2.2 -1.2 23rd 10.8 55.6 v low 19%
Corrigin 21.5 +1.7 26.0 12th 5.9 -1.6 -2.0 25th 3.0 45.5 lowest 7%
Hyden 21.8 +0.8 27.5 21st 6.2 -1.3 0.1 24th 9.8 38.3 low 26%
Jacup 19.4 -0.4 26.3 12th 7.7 -0.7 1.7 24th 32.4 33.0 average 98%
Katanning 19.4 +0.1 26.3 13th 7.6 -1.0 2.0 24th 22.8 45.6 low 50%
Lake Grace 20.0 -0.2 26.1 13th 7.7 -0.9 0.4 24th 6.2 30.0 low 21%
Narrogin 20.1 +1.4 25.5 13th 6.5 -1.3 -0.4 24th 13.0 61.3 v low 21%
Newdegate Research Station 20.2 +0.1 27.3 21st 5.4 -1.6 -1.0 24th 11.6 40.7 low 28%
Ongerup 21.9 +2.7 27.0 13th 7.9 -0.6 1.6 26th 1.4 42.3 lowest 3%
Pingelly 20.4 +0.5 26.0 13th 7.7 -1.0 1.0 24th 18.5 56.6 v low 33%
Ravensthorpe 19.9 -0.2 26.7 13th 9.0 -0.7 5.8 16th 24.0 42.9 low 56%
Wagin 20.0 +0.4 26.0 13th 6.2 -1.8 -1.0 23rd 11.3 53.1 v low 21%
Wandering 20.2 0.0 26.5 12th 4.1 -2.1 -3.2 24th 21.8 55.2 low 40%
Eucla (district 11)
Eucla 20.5 -0.7 27.5 14th 11.3 +0.7 7.0 17th 57.4 30.4 high 189%
Eyre 19.3 -2.2 20.9 6th 11.3 +2.5 7.2 9th 24.6 37.3 average 66%
Forrest 21.6 -0.8 26.9 14th 9.4 +0.9 5.6 18th 8.6 14.5 average 59%
Red Rocks Point 20.7 -0.6 27.7 14th 11.8 +0.6 7.9 30th 38.4 23.9 average 161%
South East (district 12)
Bulga Downs 22.7 -1.4 26.8 13th 8.5 -0.6 3.1 27th 2.6 24.0 low 11%
Kalgoorlie-Boulder Airport 20.6 -0.2 26.3 21st 8.2 -0.5 1.8 24th 10.8 23.8 average 45%
Laverton Aero 21.1 -1.3 25.6 13th 9.5 -0.9 2.9 24th 41.6 12.8 high 325%
Leinster Aero 22.0 -1.3 26.4 13th 9.0 -1.4 2.7 24th 6.6 13.3 average 50%
Leonora Aero 21.9 -1.4 26.4 21st 8.7 -1.1 2.1 24th 6.2 8.7 average 71%
Munglinup West 19.4 -1.2 26.7 21st 8.9 -0.7 6.4 16th 59.6 37.2 high 160%
Norseman Aero 20.3 -0.8 28.2 14th 6.6 -0.4 -0.6 24th 8.4 17.1 average 49%
Salmon Gums Res.Stn. 19.8 -0.2 26.1 20th 6.4 -0.7 0.3 17th 14.2 32.9 low 43%
Southern Cross Airfield 21.0 -0.5 26.5 21st 5.7 -1.7 -1.1 24th 11.8 26.3 low 45%
North East (district 13)
Carnegie 23.9 -1.4 31.0 31st 9.5 -1.2 3.3 24th 5.4 16.3 average 33%
Giles Meteorological Office 22.6 -1.2 31.4 1st 10.5 -0.7 2.7 25th 11.0 19.7 average 56%
Telfer Aero 27.3 -1.8 36.0 1st 15.1 -0.3 9.9 26th 25.4 18.5 high 137%
Warburton Airfield 22.6 -1.8 30.7 1st 10.7 +0.2 4.0 26th 16.0 14.6 average 110%
Wiluna Aero 23.6 30.6 30th 9.4 4.0 24th 0.0
Note: From 2017, information about Christmas Island and the Cocos and Keeling Islands can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Western 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 on Monday 1 June 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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