Tuesday 1 September 2026 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in August 2026
Rainfall
- Rainfall totals in August were above to very much above average for most of the southern half of the state, away from the Central West district and the south west, where they were broadly below average. August rainfall totals were close to average across the north.
- Western Australia's area-averaged rainfall total in August was 24.0 mm, 62% above the 1961–1990 average.
- Some sites had their highest August daily rainfall on record.
- Some sites had their highest total August rainfall on record.
- Some sites had their highest total August rainfall for at least 20 years.
Temperature
- Mean maximum temperatures in August were above to very much above for south west areas and the north, and close to average elsewhere.
- Western Australia's area-averaged mean maximum temperature was 25.3 °C, 1.86 °C above the 1961–1990 average.
- Busselton Aero had its hottest August day (highest daily maximum temperature) on record.
- Forrest and Leinster Aero had their coolest August day (lowest daily maximum temperature) on record.
- Katanning had its highest August mean maximum temperature on record.
- Carnegie had its lowest August mean maximum temperature for at least 20 years.
- Mean minimum temperatures in August were highest on record for large parts of the Gascoyne, Pilbara and Northern Interior and small parts of the Kimberley, South East Coastal and Eucla districts. They were very much above average for most of the rest of the state.
- Western Australia's area-averaged mean minimum temperature was 11.8 °C, 2.17 °C above the 1961–1990 average, the second-warmest on record for all Augusts since 1910.
- Some sites had their warmest August night (highest daily minimum temperature) on record.
- Some sites had their coldest August night (lowest daily minimum temperature) on record.
- Some sites had their highest August mean minimum temperature on record.
- Doongan had its highest August mean minimum temperature for at least 20 years.
- Western Australia's area-averaged mean temperature was 18.5 °C, 2.02 °C above the 1961–1990 average, the fourth-warmest on record for all Augusts since 1910.
- Newman Aero and Marble Bar had their highest August mean temperature on record.
- Esperance had its highest August mean temperature for at least 20 years.
Events
- Between 2 and 5 August, low pressure troughs and a cold front associated with a low pressure system, brought low to moderate rainfall totals to western parts of Western Australia
- In the 24 hours to 9 am on 8 August, a cold front brought daily rainfall totals of 10 to 35 mm to coastal regions of Western Australia's Lower West and South West districts and 5 to 15 mm to parts of the Central Wheat Belt district. Thunderstorms resulted in small hail in parts of the state's south-west, while snow was observed at Bluff Knoll in the Stirling Ranges.
- From 17 to 19 August, cold fronts and low pressure troughs moved over southern Australia. They combined with moisture transported from the Indian Ocean, bringing rain and isolated thunderstorms to the south-west of Western Australia.
- A low pressure system that developed inland of the Western Australia's west coast on 22 August, connected with tropical moisture, bringing rain and thunderstorms to the state's south and inland parts, with daily totals in the 24 hours to 9 am on 23 August generally between 5 and 35 mm.
- A cold front and the associated low pressure trough crossed the south-western west of Western Australia late on 25 August bringing showers. On 26 August, a low pressure system developed over south-western Western Australia, slowly moving eastwards, bringing widespread rain and thunderstorms with local heavy falls to the state's south. Thunderstorms affected much of Goldfields district on 28 August and in the 24 hours to 9 am on 29 August, Laverton Aero observed 29.4 mm, its record highest daily rainfall for August (33 years of data). The highest five-day rainfall totals (ending 9 am on 30 August) were recorded across the South West Land Division, and ranged between 20 and 50 mm, with pockets of 50 to 70 mm.
- For more details, visit the August national climate summary.
Extremes Maps Records Summaries Important notes the top
| Extremes in August 2026 | |
|---|---|
| Hottest day |
38.1 °C at Mandora on the 21st |
| Warmest days on average |
35.0 °C at Wyndham Aero |
| Coolest days on average |
16.1 °C at Rocky Gully |
| Coldest day |
9.3 °C at Bickley on the 8th |
| Coldest night |
-2.4 °C at Cunderdin Airfield on the 2nd -2.4 °C at Newdegate Research Station on the 2nd |
| Coolest nights on average |
3.0 °C at York |
| Warmest nights on average |
24.0 °C at Adele Island |
| Warmest night |
25.4 °C at Troughton Island on the 24th |
| Warmest on average overall |
26.8 °C at Wyndham Aero |
| Coolest on average overall |
11.0 °C at Wandering |
| Wettest overall |
189.0 mm at Willowdale |
| Wettest day |
98.0 mm at Credo on the 29th |
| Strongest wind gust |
100.0 km/h at Rottnest Island on the 17th |
Extremes Maps Records Summaries Important notes the top
| Maps | |||
|---|---|---|---|
| Observed | Anomaly | Decile rank | |
| Total rainfall |
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| Mean daily maximum temperatures |
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| Mean daily minimum temperatures |
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Click on a map to show it full size in a pop-up window
Extremes Maps Records Summaries Important notes the top
| Record highest August daily rainfall | ||||||
|---|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for August |
|||
| Doongin Peak | 44.2 | on the 27th | 30.0 | on 16 Aug 2022 | 132 | 42.0 |
| Goomalling | 41.0 | on the 28th | 38.2 | on 09 Aug 2017 | 124 | 49.8 |
| Jaroma | 40.6 | on the 27th | 34.4 | on 15 Aug 1976 | 104 | 48.8 |
| Bungulla | 48.0 | on the 26th | 36.8 | on 16 Aug 2022 | 99 | 40.9 |
| Ygnattering | 48.2 | on the 27th | 40.0 | on 16 Aug 2022 | 99 | 43.4 |
| Perivale Orchard | 57.2 | on the 26th | 55.4 | on 05 Aug 1983 | 50 | 132.7 |
| Rottnest Island | 38.4 | on the 27th | 34.6 | on 09 Aug 2017 | 36 | 86.6 |
| Forrest | 21.8 | on the 29th | 18.6 | on 27 Aug 2005 | 33 | 12.5 |
| Laverton Aero | 29.4 | on the 29th | 24.0 | on 05 Aug 1997 | 33 | 10.3 |
| Hopetoun North | 52.6 | on the 27th | 36.4 | on 04 Aug 2020 | 31 | 54.9 |
| Cunderdin Airfield | 28.8 | on the 27th | 26.0 | on 09 Aug 2017 | 30 | 43.6 |
| Norseman Aero | 28.2 | on the 28th | 23.0 | on 01 Aug 2015 | 27 | 24.9 |
| Shark Bay Airport | 44.4 | on the 22nd | 30.8 | on 07 Aug 2015 | 27 | 19.0 |
| Garden Island HSF | 53.0 | on the 27th | 42.0 | on 09 Aug 2017 | 24 | 98.1 |
| Leonora Aero | 19.6 | on the 5th | 17.2 | on 31 Aug 2010 | 20 | 11.6 |
| Record highest August total rainfall | |||||
|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for August |
||
| Gascoyne Junction | 51.8 | 51.3 | in 1921 | 112 | 11.7 |
| Laverton Aero | 62.0 | 32.0 | in 1997 | 32 | 10.3 |
| Mount Magnet Aero | 53.2 | 52.6 | in 1998 | 31 | 16.7 |
| Steep Point | 79.3 | 76.0 | in 2010 | 30 | 30.5 |
| Norseman Aero | 52.2 | 48.0 | in 2005 | 26 | 24.9 |
| Shark Bay Airport | 81.2 | 54.2 | in 2010 | 26 | 19.0 |
| Parry Creek Farm | 0.0 | =0.0 | in 2025 | 23 | 0.0 |
| Highest August total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for August |
|||
| Edaggee | 81.8 | 87.1 | in 1956 | 17.4 | |
| Weebo | 57.4 | 66.5 | in 1958 | 12.0 | |
| Meekatharra Airport | 40.0 | 56.2 | in 1965 | 11.0 | |
| Fort Hill | 84.4 | 135.8 | in 1992 | 42.5 | |
| Doodlakine | 79.5 | 118.8 | in 1992 | 37.1 | |
| Edjudina | 65.4 | 79.0 | in 1992 | 17.4 | |
| Leinster Aero | 33.6 | 45.0 | in 1997 | 9.4 | |
| Coodardy | 44.1 | 46.8 | in 1997 | 16.4 | |
| Billiluna | 1.6 | 3.0 | in 1998 | 1.6 | |
| Wynyangoo | 43.5 | 49.6 | in 1998 | 16.5 | |
| Carnarvon Airport | 51.8 | 59.2 | in 1998 | 17.5 | |
| Carey Downs | 45.0 | 50.0 | in 1998 | 12.8 | |
| Winning | 39.4 | 47.0 | in 1998 | 9.9 | |
| Hopetoun North | 107.8 | 127.2 | in 2001 | 57.7 | |
| Forrest | 41.2 | 79.6 | in 2005 | 13.6 | |
| Warburton Airfield | 31.8 | 45.2 | in 2005 | 8.7 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record highest August temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
|||
| Busselton Aero | 24.3 | on the 30th | 23.9 | on 31 Aug 2023 | 29 | 17.3 |
| Record lowest August daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
|||
| Forrest | 12.6 | on the 11th | =12.6 | on 01 Aug 1998 | 34 | 21.1 |
| Leinster Aero | 12.8 | on the 11th | =12.8 | on 05 Aug 2018 | 33 | 21.9 |
| Record highest August mean maximum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
||
| Katanning | 17.3 | =17.3 | in 2006 | 28 | 15.5 |
| Lowest August mean maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent lower |
Average for August |
|||
| Carnegie | 23.1 | 22.8 | in 2005 | 24.3 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent lower values have gone unreported
| Record highest August daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
|||
| Telfer Aero | 23.4 | on the 28th | 22.4 | on 29 Aug 2020 | 53 | 12.7 |
| Carnegie | 18.6 | on the 7th | 18.4 | on 18 Aug 2015 | 38 | 7.5 |
| Paraburdoo Aero | 20.2 | on the 20th | =20.2 | on 02 Aug 2023 | 31 | 11.2 |
| Fitzroy Crossing Aero | 25.0 | on the 27th | 23.7 | on 17 Aug 2003 | 30 | 13.8 |
| Newman Aero | 20.7 | on the 19th | 19.3 | on 22 Aug 2009 | 30 | 8.3 |
| Record lowest August temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
|||
| Ongerup | -2.0 | on the 4th | -1.2 | on 04 Aug 2023 | 60 | 5.7 |
| Wagin | -2.0 | on the 2nd | -1.3 | on 13 Aug 1975 | 56 | 5.7 |
| Windy Harbour | 1.5 | on the 11th | =1.5 | on 06 Aug 2011 | 40 | 9.0 |
| Thevenard Island | 10.3 | on the 13th | 10.9 | on 08 Aug 2018 | 33 | 17.6 |
| Lake Grace | -1.3 | on the 2nd | =-1.3 | on 23 Aug 2010 | 30 | 5.7 |
| Katanning | -1.1 | on the 2nd | -1.0 | on 31 Aug 2005 | 28 | 6.0 |
| Record highest August mean minimum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
||
| Mardie | 15.0 | 14.9 | in 2024 | 70 | 12.6 |
| Onslow Airport | 16.4 | =16.4 | in 2024 | 61 | 13.8 |
| Telfer Aero | 15.4 | 15.2 | in 2020 | 53 | 12.7 |
| Paraburdoo Aero | 13.9 | 13.2 | in 2025 | 31 | 11.2 |
| Hopetoun North | 9.2 | =9.2 | in 2024 | 30 | 7.9 |
| Newman Aero | 12.5 | 10.7 | in 2024 | 30 | 8.3 |
| Marble Bar | 16.4 | 15.0 | in 2024 | 26 | 13.4 |
| Roebourne Aero | 14.9 | 14.8 | in 2024 | 26 | 12.8 |
| Highest August mean minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent higher |
Average for August |
|||
| Doongan | 15.0 | 15.3 | in 1998 | 12.3 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
| Record highest August mean temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for August |
||
| Newman Aero | 19.8 | 19.6 | in 2023 | 30 | 17.3 |
| Marble Bar | 24.1 | 23.8 | in 2023 | 26 | 21.9 |
| Highest August mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent higher |
Average for August |
|||
| Esperance | 14.9 | 15.7 | in 2006 | 13.4 | |
note: there may be gaps in the historical record at some sites, so it is possible more recent higher values have gone unreported
Extremes Maps Records Summaries Important notes the top
| Summary statistics for August 2026 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for August 2026 |
Diff from average |
Highest for August 2026 |
Mean for August 2026 |
Diff from average |
Lowest for August 2026 |
Total for August 2026 |
Average for August |
Rank of August 2026 |
Fraction of August average |
|||
| North Kimberley (district 01) | ||||||||||||
| Doongan | 32.4 | +0.7 | 36.0 | 10th | 15.0 | +2.7 | 9.1 | 3rd | 0.0 | 0.7 | lowest | 0% |
| Kalumburu | 33.6 | -0.4 | 36.9 | 30th | 16.6 | +1.8 | 12.2 | 3rd | 0.0 | 0.2 | lowest | 0% |
| Troughton Island | 29.5 | +0.5 | 32.7 | 29th | 22.9 | +0.2 | 21.2 | 4th | 0.0 | 0.5 | lowest | 0% |
| Truscott | 31.6 | -0.4 | 34.5 | 29th | 19.3 | +0.4 | 16.2 | 4th | 0.0 | 0.3 | lowest | 0% |
| Wyndham Aero | 35.0 | +0.7 | 37.8 | 30th | 18.5 | +2.1 | 13.0 | 3rd | 0.0 | 0.0 | lowest | 0% |
| East Kimberley (district 02) | ||||||||||||
| Halls Creek Airport | 31.7 | +0.8 | 34.2 | 21st | 15.5 | +2.7 | 9.4 | 1st | 0.0 | 2.3 | lowest | 0% |
| Kununurra Aero | 34.6 | +1.6 | 36.8 | 30th | 16.3 | +0.9 | 11.5 | 3rd | 0.0 | 0.1 | lowest | 0% |
| West Kimberley (district 03) | ||||||||||||
| Broome Airport | 31.1 | +0.6 | 36.8 | 26th | 16.6 | +1.7 | 13.0 | 5th | 0.4 | 2.1 | average | 19% |
| Curtin Aero | 33.9 | +0.6 | 37.0 | 31st | 16.6 | +0.7 | 12.0 | 11th | 0.0 | 1.9 | lowest | 0% |
| Cygnet Bay | 32.1 | +2.4 | 34.0 | 30th | 19.6 | +4.5 | 17.6 | 25th | 0.0 | 0.9 | lowest | 0% |
| Derby Aero | 33.8 | +0.9 | 36.5 | 31st | 17.1 | +1.3 | 12.9 | 10th | 10.0 | 1.1 | high | 909% |
| Fitzroy Crossing Aero | 34.5 | +1.0 | 37.2 | 21st | 17.3 | +3.5 | 11.2 | 4th | 0.0 | 2.3 | lowest | 0% |
| Yampi Sound (Defence) | 34.5 | 37.3 | 26th | 15.6 | 11.6 | 4th | 0.4 | |||||
| De Grey (district 04) | ||||||||||||
| Bedout Island | 26.6 | +0.1 | 28.5 | 23rd | 20.3 | -0.1 | 16.7 | 12th | ||||
| Karratha Aero | 29.2 | +0.8 | 33.3 | 31st | 16.3 | +1.7 | 9.7 | 13th | 0.0 | 5.0 | lowest | 0% |
| Legendre Island | 26.8 | +0.5 | 30.3 | 31st | 19.6 | +0.7 | 15.8 | 10th | ||||
| Mandora | 33.1 | +2.1 | 38.1 | 21st | 14.2 | +0.9 | 8.6 | 14th | 0.2 | 2.5 | high | 8% |
| Marble Bar | 31.9 | +1.4 | 36.8 | 31st | 16.4 | +3.0 | 8.7 | 11th | 0.0 | 1.3 | lowest | 0% |
| Pardoo Station | 31.5 | +1.3 | 36.7 | 31st | 14.6 | +1.1 | 8.0 | 11th | 0.0 | 4.5 | lowest | 0% |
| Port Hedland Airport | 30.9 | +1.5 | 35.4 | 30th | 15.5 | +2.2 | 9.0 | 10th | 0.0 | 4.7 | lowest | 0% |
| Roebourne Aero | 31.3 | +0.9 | 36.4 | 31st | 14.9 | +2.1 | 7.2 | 10th | 0.0 | 2.0 | lowest | 0% |
| Fortescue (district 05) | ||||||||||||
| Barrow Island Airport | 25.5 | +0.2 | 29.4 | 21st | 18.8 | +0.9 | 13.5 | 10th | 0.6 | 4.8 | low | 12% |
| Karijini North | 29.0 | 34.2 | 31st | 16.5 | 7.2 | 10th | 0.6 | |||||
| Learmonth Airport | 26.3 | -0.3 | 30.2 | 30th | 13.5 | +1.3 | 5.7 | 13th | 14.2 | 11.8 | high | 120% |
| Mardie | 29.8 | +0.1 | 33.0 | 22nd | 15.0 | +2.4 | 7.5 | 13th | 0.0 | 7.3 | lowest | 0% |
| Onslow Airport | 28.1 | +0.6 | 30.4 | 1st | 16.4 | +2.6 | 9.5 | 10th | 0.4 | 8.7 | low | 5% |
| Thevenard Island | 26.2 | 0.0 | 29.9 | 21st | 18.5 | +0.9 | 10.3 | 13th | 0.4 | 5.0 | low | 8% |
| West Gascoyne (district 06) | ||||||||||||
| Carnarvon Airport | 23.6 | +0.3 | 30.4 | 2nd | 12.4 | +0.8 | 6.0 | 12th | 51.8 | 17.0 | high | 305% |
| Gascoyne Junction | 25.9 | +0.7 | 29.5 | 17th | 12.4 | +2.3 | 6.0 | 10th | 51.8 | 11.7 | highest | 443% |
| Murchison | 23.3 | 0.0 | 28.0 | 31st | 10.4 | +3.0 | 5.1 | 11th | 41.2 | 19.6 | high | 210% |
| Shark Bay Airport | 22.8 | -1.4 | 28.1 | 16th | 11.9 | +0.6 | 7.2 | 10th | 81.2 | 19.0 | highest | 427% |
| East Gascoyne (district 07) | ||||||||||||
| Newman Aero | 27.2 | +0.9 | 34.2 | 31st | 12.5 | +4.2 | 0.3 | 10th | 1.0 | 6.2 | average | 16% |
| Paraburdoo Aero | 28.0 | +0.3 | 33.1 | 30th | 13.9 | +2.7 | 5.0 | 10th | 0.0 | 9.8 | lowest | 0% |
| Murchison (district 07A) | ||||||||||||
| Meekatharra Airport | 21.7 | -0.1 | 29.3 | 31st | 10.9 | +2.1 | 3.3 | 9th | 40.0 | 10.7 | high | 374% |
| Mount Magnet Aero | 20.9 | -0.6 | 28.0 | 31st | 9.9 | +1.6 | 2.7 | 12th | 53.2 | 16.7 | highest | 319% |
| Paynes Find | 21.0 | +0.7 | 27.1 | 30th | 7.4 | +1.3 | 0.2 | 12th | 23.4 | 28.3 | average | 83% |
| North Coast (district 08) | ||||||||||||
| Carnamah | 24.5 | +5.2 | 25.0 | 30th | 4.1 | -3.2 | 2.8 | 11th | 30.2 | 52.2 | low | 58% |
| Dalwallinu | 19.0 | +0.7 | 24.6 | 30th | 6.4 | +0.2 | 1.3 | 2nd | 38.2 | 42.4 | average | 90% |
| Geraldton Airport | 21.3 | +0.2 | 26.0 | 3rd | 9.5 | +0.4 | 3.5 | 12th | 57.8 | 66.9 | average | 86% |
| Kalbarri | 23.1 | +0.5 | 29.0 | 16th | 10.7 | +0.6 | 5.9 | 12th | 17.8 | 49.4 | v low | 36% |
| Morawa Airport | 21.4 | +1.1 | 27.3 | 3rd | 7.2 | +0.6 | 1.1 | 12th | 20.0 | 39.4 | low | 51% |
| Mullewa | 21.9 | +1.6 | 26.8 | 3rd | 8.1 | +0.8 | 1.4 | 9th | 14.4 | 42.8 | low | 34% |
| North Island | 21.7 | +0.1 | 25.3 | 16th | 15.0 | -0.4 | 8.7 | 25th | 27.8 | 38.3 | average | 73% |
| Wongan Hills | 19.4 | +1.4 | 24.4 | 30th | 8.1 | +1.4 | 3.0 | 11th | 47.0 | 52.6 | average | 89% |
| Central Coast (district 09) | ||||||||||||
| Badgingarra Research Stn | 18.9 | +0.6 | 23.7 | 3rd | 8.4 | +1.2 | 3.7 | 11th | 75.2 | 85.8 | average | 88% |
| Bickley | 17.1 | +1.1 | 23.9 | 30th | 8.1 | +0.5 | 2.3 | 11th | 135.6 | 178.3 | low | 76% |
| Garden Island HSF | 19.0 | +0.8 | 23.7 | 16th | 11.5 | +0.2 | 7.7 | 11th | 134.2 | 98.1 | high | 137% |
| Gingin Aero | 20.0 | +0.8 | 25.3 | 30th | 6.5 | -0.2 | 0.2 | 13th | 89.2 | 111.9 | low | 80% |
| Jandakot Aero | 19.9 | +1.1 | 25.5 | 30th | 7.8 | +0.4 | 0.5 | 11th | 105.2 | 129.9 | low | 81% |
| Jurien Bay | 21.2 | +1.1 | 26.5 | 16th | 10.0 | +0.6 | 4.1 | 13th | 73.4 | 82.4 | average | 89% |
| Karnet | 17.3 | +1.3 | 23.8 | 30th | 7.5 | +1.1 | 1.3 | 11th | 114.1 | 183.6 | low | 62% |
| Lancelin (Defence) | 20.3 | 26.0 | 16th | 10.1 | 3.7 | 6th | 71.0 | |||||
| Millendon (Swan Valley) | 20.2 | 25.9 | 30th | 7.8 | 1.1 | 11th | 111.2 | |||||
| Pearce RAAF | 19.9 | +1.4 | 24.7 | 30th | 8.3 | 0.0 | 1.5 | 11th | 88.8 | 107.4 | average | 83% |
| Perth Airport | 20.2 | 26.3 | 30th | 8.8 | 1.7 | 11th | 88.6 | |||||
| Perth Airport M.O. | 20.7 | +2.0 | 26.9 | 30th | 8.4 | +0.3 | 1.1 | 11th | 88.8 | 119.2 | low | 74% |
| Perth Metro | 20.2 | +1.0 | 25.8 | 30th | 8.7 | +0.3 | 2.5 | 11th | 97.0 | 125.2 | low | 78% |
| Rottnest Island | 18.8 | +0.8 | 23.2 | 16th | 12.9 | +0.5 | 7.4 | 9th | 80.6 | 86.6 | average | 93% |
| Swanbourne | 19.7 | +0.8 | 24.6 | 16th | 10.5 | +0.3 | 5.1 | 11th | 89.2 | 119.9 | low | 74% |
| South Coast (district 09A) | ||||||||||||
| Albany | 17.6 | +1.2 | 23.4 | 30th | 10.5 | +2.0 | 4.6 | 2nd | 106.4 | 126.9 | average | 84% |
| Albany Airport | 17.9 | +0.7 | 23.6 | 30th | 8.3 | +0.6 | 1.3 | 2nd | 78.0 | 120.5 | low | 65% |
| Bridgetown | 17.2 | +0.7 | 22.4 | 30th | 4.9 | -0.3 | -1.3 | 3rd | 122.2 | 119.7 | average | 102% |
| Bunbury | 18.1 | +0.4 | 22.1 | 16th | 7.1 | -0.6 | 0.8 | 11th | 109.0 | 122.9 | average | 89% |
| Busselton Aero | 17.9 | +0.6 | 24.3 | 30th | 6.5 | -0.8 | 0.7 | 2nd | 91.6 | 110.9 | low | 83% |
| Cape Leeuwin | 17.9 | +1.4 | 22.8 | 15th | 12.5 | +1.2 | 7.7 | 11th | 83.8 | 135.2 | low | 62% |
| Cape Naturaliste | 18.4 | +1.9 | 22.5 | 30th | 10.6 | +0.5 | 6.0 | 11th | 116.2 | 113.0 | average | 103% |
| Collie East | 18.1 | +0.9 | 24.3 | 30th | 4.9 | +0.1 | -1.3 | 3rd | 81.4 | 116.9 | low | 70% |
| Donnybrook | 18.9 | +1.6 | 25.5 | 30th | 6.5 | +0.3 | 0.8 | 11th | 122.4 | 147.4 | average | 83% |
| Dwellingup | 17.6 | +1.8 | 24.9 | 30th | 6.3 | +0.8 | 0.5 | 12th | 169.8 | 193.6 | average | 88% |
| Esperance | 19.7 | +1.7 | 27.7 | 31st | 10.0 | +1.3 | 6.4 | 9th | 74.6 | 87.1 | average | 86% |
| Esperance Aero | 18.5 | +1.1 | 26.0 | 31st | 8.9 | +1.1 | 4.7 | 11th | 95.2 | 72.8 | high | 131% |
| Hopetoun North | 19.5 | +0.8 | 26.4 | 31st | 9.2 | +1.3 | 3.9 | 3rd | 107.8 | 56.0 | high | 192% |
| Jarrahwood | 18.2 | +1.2 | 24.7 | 30th | 4.6 | -0.6 | -2.0 | 2nd | 109.2 | 148.7 | low | 73% |
| Mandurah | 18.6 | +0.6 | 24.1 | 30th | 11.6 | +0.5 | 5.4 | 11th | 86.0 | 95.5 | average | 90% |
| Manjimup | 16.5 | +1.4 | 22.6 | 30th | 7.2 | +0.6 | 2.4 | 2nd | 102.4 | 145.4 | low | 70% |
| Mount Barker | 16.6 | +1.5 | 22.0 | 30th | 7.3 | +1.1 | 2.5 | 11th | 68.6 | 89.9 | low | 76% |
| North Walpole | 17.1 | +0.4 | 23.7 | 30th | 10.0 | +0.9 | 4.8 | 3rd | 155.6 | 167.1 | average | 93% |
| Rocky Gully | 16.1 | +0.6 | 21.7 | 30th | 7.5 | +0.7 | 2.6 | 11th | 68.8 | 97.8 | low | 70% |
| Shannon | 16.4 | +0.9 | 23.0 | 30th | 7.6 | +0.6 | 2.3 | 3rd | 122.0 | 145.8 | low | 84% |
| Windy Harbour | 17.7 | +0.7 | 22.5 | 16th | 8.9 | -0.1 | 1.5 | 27th | 111.7 | 167.4 | low | 67% |
| Witchcliffe West | 17.1 | 22.4 | 30th | 8.9 | 4.2 | 28th | 98.8 | |||||
| North Central (district 10) | ||||||||||||
| Bencubbin | 18.8 | +1.0 | 24.3 | 4th | 5.3 | -0.7 | 1.3 | 11th | 51.5 | 37.9 | high | 136% |
| Cunderdin Airfield | 19.3 | +1.2 | 24.0 | 3rd | 4.2 | -0.4 | -2.4 | 2nd | 56.2 | 43.6 | high | 129% |
| Goomalling | 20.1 | +1.8 | 24.5 | 30th | 5.3 | -1.0 | 0.2 | 11th | 86.5 | 49.8 | high | 174% |
| Kellerberrin | 19.3 | +1.5 | 24.5 | 26th | 3.0 | -2.3 | -2.0 | 13th | 88.5 | 41.4 | high | 214% |
| Merredin | 20.9 | +3.3 | 25.0 | 27th | 4.5 | -1.1 | 0.2 | 12th | 46.7 | 39.7 | average | 118% |
| Northam | 19.6 | +1.6 | 24.0 | 30th | 5.0 | -0.6 | 0.4 | 13th | 60.0 | 61.8 | average | 97% |
| York | 19.4 | +1.3 | 24.5 | 30th | 3.0 | -1.0 | -2.0 | 2nd | 56.3 | 63.3 | average | 89% |
| South Central (district 10A) | ||||||||||||
| Beverley | 19.8 | +1.9 | 25.0 | 30th | 4.8 | -0.3 | -0.8 | 3rd | 57.1 | 59.5 | average | 96% |
| Brookton | 18.8 | +1.9 | 24.0 | 30th | 4.3 | -0.3 | -1.0 | 2nd | 48.6 | 62.7 | average | 78% |
| Corrigin | 18.8 | +2.3 | 23.0 | 30th | 4.6 | -0.2 | -1.0 | 13th | 52.0 | 47.9 | average | 109% |
| Hyden | 19.1 | +1.4 | 24.3 | 3rd | 4.3 | -0.5 | -1.2 | 2nd | 22.8 | 41.5 | low | 55% |
| Jacup | 18.5 | +1.6 | 24.5 | 22nd | 5.7 | 0.0 | 0.5 | 11th | 41.6 | 53.2 | average | 78% |
| Katanning | 17.3 | +1.8 | 23.4 | 22nd | 5.9 | -0.1 | -1.1 | 2nd | 34.8 | 60.7 | v low | 57% |
| Lake Grace | 18.3 | +1.4 | 23.9 | 22nd | 5.6 | -0.1 | -1.3 | 2nd | 38.0 | 39.3 | average | 97% |
| Narrogin | 17.8 | +2.4 | 23.5 | 30th | 5.7 | +0.5 | -1.2 | 2nd | 65.0 | 68.0 | average | 96% |
| Newdegate Research Station | 18.1 | +1.7 | 23.9 | 22nd | 4.5 | +0.2 | -2.4 | 2nd | 46.0 | 45.8 | average | 100% |
| Ongerup | 19.6 | +3.6 | 24.3 | 24th | 5.1 | -0.6 | -2.0 | 4th | 40.3 | 44.3 | average | 91% |
| Ravensthorpe | 19.4 | +2.0 | 25.0 | 31st | 7.4 | +0.7 | 1.2 | 11th | 50.8 | 45.5 | average | 112% |
| Wagin | 17.7 | +1.6 | 23.0 | 30th | 5.7 | 0.0 | -2.0 | 2nd | 55.6 | 57.0 | average | 98% |
| Wandering | 17.7 | +1.1 | 23.0 | 30th | 4.3 | +0.1 | -2.2 | 2nd | 98.8 | 95.8 | average | 103% |
| Eucla (district 11) | ||||||||||||
| Eucla | 20.5 | +1.2 | 30.3 | 31st | 8.7 | +1.1 | 2.3 | 3rd | 47.6 | 26.3 | high | 181% |
| Forrest | 21.3 | +0.2 | 30.1 | 27th | 7.3 | +1.3 | 1.6 | 3rd | 41.2 | 12.7 | high | 324% |
| Red Rocks Point | 19.8 | +0.1 | 30.8 | 27th | 8.6 | +0.2 | 4.5 | 25th | 55.4 | 35.5 | high | 156% |
| South East (district 12) | ||||||||||||
| Bulga Downs | 21.6 | -0.6 | 30.5 | 31st | 8.7 | +2.3 | 1.7 | 10th | 31.0 | 15.3 | high | 203% |
| Kalgoorlie-Boulder Airport | 20.8 | +2.0 | 29.5 | 31st | 7.7 | +1.9 | 1.1 | 12th | 27.2 | 21.6 | average | 126% |
| Laverton Aero | 20.9 | -0.2 | 29.3 | 31st | 9.7 | +2.1 | 0.7 | 12th | 62.0 | 10.3 | highest | 602% |
| Leinster Aero | 21.0 | -0.9 | 30.6 | 31st | 9.9 | +2.0 | 1.4 | 12th | 33.6 | 8.6 | high | 391% |
| Leonora Aero | 20.7 | -1.2 | 29.4 | 31st | 9.7 | +1.9 | 1.9 | 12th | 61.0 | 11.6 | highest | 526% |
| Munglinup West | 18.8 | +0.8 | 25.7 | 31st | 7.6 | +0.8 | 3.1 | 11th | 70.0 | 46.2 | high | 152% |
| Norseman Aero | 20.4 | +1.1 | 27.4 | 31st | 6.3 | +1.7 | -0.1 | 2nd | 52.2 | 24.9 | highest | 210% |
| Salmon Gums Res.Stn. | 19.5 | +2.0 | 26.6 | 26th | 5.1 | +0.4 | -1.9 | 2nd | 43.6 | 34.6 | high | 126% |
| Southern Cross Airfield | 19.4 | +0.8 | 26.3 | 26th | 5.4 | +1.3 | -0.5 | 12th | 42.4 | 34.6 | high | 122% |
| North East (district 13) | ||||||||||||
| Carnegie | 23.1 | -1.2 | 34.0 | 31st | 9.6 | +2.1 | 1.0 | 12th | 37.6 | 7.7 | high | 488% |
| Giles Meteorological Office | 23.9 | +0.9 | 30.4 | 19th | 11.8 | +3.0 | 1.1 | 10th | 22.8 | 9.3 | high | 245% |
| Telfer Aero | 30.6 | +2.0 | 36.4 | 31st | 15.4 | +2.7 | 7.5 | 10th | 0.4 | 5.1 | average | 8% |
| Warburton Airfield | 23.3 | -0.2 | 31.0 | 31st | 11.9 | +4.4 | 2.1 | 10th | 31.8 | 8.3 | high | 383% |
| Wiluna Aero | 22.7 | 32.1 | 31st | 9.8 | 1.2 | 10th | 19.0 | |||||
| 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 | ||||||||||||
Extremes Maps Records Summaries 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 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 Tuesday 1 September 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.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence









