Thursday 1 October 2026 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in September 2026
Rainfall
- Rainfall totals in September were above to very much above average for most of the state with highest on record across large areas of the Southern Interior, Goldfields and Eucla districts. Rainfall totals in September were below to very much below average for south western parts and for the Central West district.
- Western Australia's area-averaged rainfall total in September was 25.3 mm, 147% above the 1961–1990 average, the second-wettest on record for all Septembers since 1900.
- It was the wettest September in Western Australia since 1904.
- Many sites had their highest September daily rainfall on record.
- Many sites had their highest total September rainfall on record.
- Some sites had their highest total September rainfall for at least 20 years.
Temperature
- Mean maximum temperatures in September were above to very much above average for most of the state away from the south east and the far north, where they were close to average. Mean maximum temperatures in September were highest on record for part of the Northern Interior district.
- Western Australia's area-averaged mean maximum temperature was 29.4 °C, 2.24 °C above the 1961–1990 average, the sixth-warmest on record for all Septembers since 1910.
- Some sites had their hottest September day (highest daily maximum temperature) on record.
- Some sites had their highest September mean maximum temperature on record.
- Mean minimum temperatures in September were highest on record for much of the state, including around the south west. Mean minimum temperatures were otherwise very much above average almost everywhere outside of the Kimberley, where they were close to average.
- Western Australia's area-averaged mean minimum temperature was 15.4 °C, 3.19 °C above the 1961–1990 average, the warmest on record for all Septembers since 1910.
- Western Australia's previous record highest area-averaged mean minimum temperature for September was 14.6 °C, 2.31 °C above the 1961–1990 average, in 2023.
- Many sites had their warmest September night (highest daily minimum temperature) on record.
- Many sites had their highest September mean minimum temperature on record.
- Gingin Aero and Jurien Bay had their highest September mean minimum temperature for at least 20 years.
- Western Australia's area-averaged mean temperature was 22.4 °C, 2.72 °C above the 1961–1990 average, the second-warmest on record for all Septembers since 1910.
- Many sites had their highest September mean temperature on record.
Events
- Four-day rainfall totals ending 9 am on 9 September ranged between 10 and 50 mm, and locally higher, in large parts of the Goldfields and Southern Interior districts. Average September rainfall in these areas is generally less than 10 mm.
- Five-day rainfall totals ending 9 am on 30 September of more than 50 mm were recorded across most of the Goldfields district, noting that average September rainfall in this area is 5 to 25 mm.
- For more details, visit the September national climate summary.
Extremes Maps Records Summaries Important notes the top
| Extremes in September 2026 | |
|---|---|
| Hottest day |
40.6 °C at Port Hedland Airport on the 15th 40.6 °C at Roebourne Aero on the 23rd |
| Warmest days on average |
37.7 °C at Fitzroy Crossing Aero |
| Coolest days on average |
18.1 °C at Rocky Gully |
| Coldest day |
11.5 °C at Ongerup on the 30th |
| Coldest night |
0.3 °C at Newdegate Research Station on the 5th |
| Coolest nights on average |
7.9 °C at York 7.9 °C at Wandering |
| Warmest nights on average |
25.2 °C at Troughton Island 25.2 °C at Adele Island |
| Warmest night |
27.1 °C at Marble Bar on the 15th |
| Warmest on average overall |
29.6 °C at Wyndham Aero |
| Coolest on average overall |
13.7 °C at Rocky Gully |
| Wettest overall |
136.6 mm at Leonora Aero |
| Wettest day |
58.8 mm at Leonora Aero on the 7th |
| Strongest wind gust |
106.0 km/h at Cape Leeuwin on the 19th |
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 September daily rainfall | ||||||
|---|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for September |
|||
| Edjudina | 50.6 | on the 27th | 35.5 | on 01 Sep 2010 | 123 | 9.3 |
| Wattening | 55.4 | on the 27th | 30.0 | on 23 Sep 1913 | 114 | 35.1 |
| Narndee | 47.8 | on the 16th | 34.0 | on 19 Sep 1974 | 95 | 11.9 |
| Warburton Airfield | 40.2 | on the 9th | 26.4 | on 29 Sep 2004 | 66 | 5.5 |
| Mordetta | 37.2 | on the 28th | 22.0 | on 22 Sep 2017 | 55 | 28.4 |
| Prenti Downs | 36.0 | on the 20th | 27.0 | on 30 Sep 1992 | 45 | 4.7 |
| Jacup | 44.6 | on the 27th | 34.8 | on 30 Sep 2003 | 33 | 40.9 |
| Tjukayirla | 22.5 | on the 24th | 19.8 | on 02 Sep 2010 | 30 | 3.4 |
| Katanning | 30.6 | on the 28th | 25.0 | on 04 Sep 2012 | 28 | 48.7 |
| Munglinup West | 24.4 | on the 26th | 24.2 | on 08 Sep 2013 | 25 | 35.7 |
| Leonora Aero | 58.8 | on the 7th | 29.6 | on 06 Sep 2022 | 20 | 7.5 |
| Record highest September total rainfall | |||||
|---|---|---|---|---|---|
| New record (mm) |
Old record |
Years of record |
Average for September |
||
| Edjudina | 117.6 | 114.0 | in 1904 | 121 | 9.3 |
| Mundrabilla Station | 93.2 | 90.0 | in 2010 | 112 | 17.9 |
| Learmonth Airport | 18.6 | =18.6 | in 2022 | 70 | 2.2 |
| Carnegie | 63.4 | 50.6 | in 2022 | 70 | 4.3 |
| Warburton Airfield | 75.0 | 57.8 | in 2010 | 65 | 5.5 |
| Warra Jarra | 115.4 | 99.2 | in 2017 | 46 | 46.6 |
| Prenti Downs | 77.0 | 40.4 | in 2022 | 44 | 4.7 |
| Jacup | 105.6 | 83.0 | in 2003 | 32 | 40.9 |
| Leinster Aero | 56.2 | 26.8 | in 2010 | 31 | 4.1 |
| Tjukayirla | 77.4 | 23.4 | in 2010 | 29 | 3.4 |
| Highest September total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (mm) |
Most recent higher |
Average for September |
|||
| Kalgoorlie-Boulder Airport | 80.2 | 98.3 | in 1955 | 14.1 | |
| Bulong | 79.6 | 101.7 | in 1955 | 14.4 | |
| Narndee | 48.2 | 65.2 | in 1974 | 12.6 | |
| Gairdner | 97.5 | 99.1 | in 1985 | 47.0 | |
| Mordetta | 58.9 | 69.0 | in 1992 | 29.8 | |
| Newdegate Research Station | 59.8 | 69.0 | in 1992 | 32.6 | |
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 September temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Albany | 31.8 | on the 17th | 30.6 | on 10 Sep 1916 | 84 | 17.4 |
| Rocky Gully | 29.1 | on the 17th | 27.4 | on 10 Sep 2019 | 31 | 16.8 |
| Shannon | 28.0 | on the 17th | =28.0 | on 29 Sep 2006 | 30 | 16.6 |
| Katanning | 31.8 | on the 17th | 31.0 | on 29 Sep 2006 | 28 | 17.7 |
| North Walpole | 29.6 | on the 17th | 28.6 | on 24 Sep 2015 | 23 | 17.6 |
| Record highest September mean maximum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
||
| Cape Leeuwin | 19.1 | 18.6 | in 2015 | 130 | 17.2 |
| Cape Naturaliste | 20.0 | 19.9 | in 2024 | 123 | 17.5 |
| Telfer Aero | 36.2 | 35.9 | in 2023 | 53 | 33.0 |
| Garden Island HSF | 20.6 | 20.2 | in 2023 | 25 | 19.1 |
| Record highest September daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
|||
| Narrogin | 18.0 | on the 17th | 15.5 | on 17 Sep 1976 | 112 | 6.0 |
| Manjimup | 15.7 | on the 17th | 15.5 | on 10 Sep 2015 | 70 | 7.3 |
| Wongan Hills | 21.0 | on the 17th | 20.1 | on 28 Sep 2023 | 61 | 7.7 |
| Karnet | 19.2 | on the 17th | 16.2 | on 21 Sep 2014 | 61 | 7.4 |
| Badgingarra Research Stn | 17.5 | on the 17th | 17.3 | on 30 Sep 2010 | 60 | 7.7 |
| Ongerup | 16.5 | on the 17th | 15.0 | on 28 Sep 2023 | 60 | 6.5 |
| Beverley | 18.6 | on the 17th | 15.2 | on 30 Sep 2010 | 58 | 5.9 |
| Goomalling | 20.9 | on the 17th | 19.0 | on 28 Sep 2023 | 51 | 7.0 |
| Murchison | 22.5 | on the 18th | 19.1 | on 30 Sep 1990 | 38 | 9.8 |
| Swanbourne | 19.1 | on the 17th | 19.0 | on 10 Sep 2015 | 34 | 11.1 |
| Perth Metro | 18.2 | on the 17th | =18.2 | on 30 Sep 2010 | 33 | 9.7 |
| Paraburdoo Aero | 24.0 | on the 22nd | 23.7 | on 20 Sep 2015 | 31 | 14.1 |
| Rocky Gully | 17.2 | on the 17th | 16.2 | on 10 Sep 2015 | 31 | 7.2 |
| Newdegate Research Station | 15.4 | on the 18th | 14.3 | on 11 Sep 2006 | 31 | 4.9 |
| Cunderdin Airfield | 17.9 | on the 17th | 17.0 | on 30 Sep 2010 | 30 | 5.0 |
| Lake Grace | 16.1 | on the 17th | 15.2 | on 28 Sep 2023 | 30 | 6.6 |
| Katanning | 15.6 | on the 17th | =15.6 | on 10 Sep 2015 | 28 | 6.3 |
| Wandering | 18.2 | on the 17th | 14.0 | on 27 Sep 2000 | 28 | 4.8 |
| Gooseberry Hill | 19.5 | on the 17th | 19.4 | on 28 Sep 2023 | 27 | 10.3 |
| Mandurah | 18.4 | on the 17th | 18.2 | on 28 Sep 2023 | 25 | 11.9 |
| Record highest September mean minimum temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
||
| Cape Leeuwin | 13.3 | =13.3 | in 2023 | 130 | 11.8 |
| Albany | 12.1 | 11.5 | in 1918 | 110 | 9.4 |
| Narrogin | 9.3 | 8.5 | in 2023 | 109 | 6.0 |
| Eucla | 12.6 | 11.8 | in 1916 | 106 | 9.2 |
| Dwellingup | 9.5 | 9.0 | in 2023 | 89 | 6.5 |
| Salmon Gums Res.Stn. | 9.1 | 8.5 | in 2023 | 88 | 5.7 |
| Manjimup | 9.3 | 9.0 | in 2023 | 87 | 7.3 |
| Perth Airport M.O. | 11.5 | 11.1 | in 2023 | 83 | 8.9 |
| Giles Meteorological Office | 18.3 | 15.7 | in 2023 | 71 | 13.1 |
| Pearce RAAF | 11.2 | 11.0 | in 2023 | 66 | 8.9 |
| Karnet | 10.2 | 9.7 | in 2023 | 60 | 7.4 |
| Wongan Hills | 11.9 | 10.0 | in 2023 | 60 | 7.7 |
| Brookton | 8.4 | 7.7 | in 2014 | 59 | 5.4 |
| Esperance | 12.4 | 11.9 | in 2023 | 58 | 9.6 |
| Beverley | 9.4 | 8.3 | in 2013 | 57 | 5.9 |
| Hyden | 8.8 | =8.8 | in 2023 | 54 | 6.0 |
| Telfer Aero | 21.4 | 19.9 | in 2020 | 53 | 16.7 |
| Wagin | 9.2 | 8.7 | in 2013 | 52 | 6.3 |
| Warburton Airfield | 17.1 | 15.8 | in 2023 | 52 | 11.6 |
| Jandakot Aero | 11.1 | =11.1 | in 2023 | 37 | 8.4 |
| Murchison | 14.5 | 14.3 | in 2023 | 37 | 9.8 |
| Carnegie | 16.2 | 14.2 | in 2023 | 36 | 11.6 |
| Esperance Aero | 11.1 | 10.7 | in 2023 | 35 | 8.5 |
| Forrest | 11.5 | 10.4 | in 2023 | 34 | 8.2 |
| Jacup | 8.8 | 8.4 | in 2023 | 34 | 6.3 |
| Rocky Gully | 9.3 | 8.8 | in 2023 | 31 | 7.2 |
| Newdegate Research Station | 8.2 | 7.8 | in 2023 | 31 | 4.9 |
| York | 7.9 | 7.1 | in 2023 | 31 | 4.8 |
| Newman Aero | 17.0 | 16.8 | in 2024 | 30 | 12.6 |
| Lake Grace | 9.4 | 9.1 | in 2023 | 30 | 6.6 |
| Cunderdin Airfield | 8.2 | 7.4 | in 2013 | 30 | 5.0 |
| Hopetoun North | 11.7 | 11.1 | in 2023 | 30 | 8.7 |
| Wandering | 7.9 | 7.2 | in 2013 | 28 | 4.8 |
| Katanning | 8.6 | 8.2 | in 2023 | 28 | 6.3 |
| Mandurah | 13.9 | 13.7 | in 2023 | 25 | 11.9 |
| Collie East | 8.5 | 8.4 | in 2013 | 24 | 5.7 |
| Bulga Downs | 13.0 | =13.0 | in 2023 | 24 | 9.3 |
| North Walpole | 10.8 | 10.3 | in 2023 | 23 | 9.3 |
| Highest September mean minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Observed (°C) |
Most recent higher |
Average for September |
|||
| Gingin Aero | 9.8 | 11.0 | in 1996 | 7.5 | |
| Jurien Bay | 11.7 | 11.8 | in 2000 | 10.0 | |
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 September mean temperature | |||||
|---|---|---|---|---|---|
| New record (°C) |
Old record |
Years of record |
Average for September |
||
| Cape Leeuwin | 16.2 | 15.9 | in 2023 | 130 | 14.5 |
| Cape Naturaliste | 15.9 | 15.8 | in 2023 | 123 | 14.0 |
| Dwellingup | 14.5 | 14.4 | in 2023 | 89 | 12.0 |
| Perth Airport M.O. | 17.2 | 16.9 | in 2023 | 83 | 14.6 |
| Giles Meteorological Office | 24.7 | 23.4 | in 2023 | 71 | 20.4 |
| Pearce RAAF | 16.8 | =16.8 | in 2023 | 66 | 14.6 |
| Wongan Hills | 17.4 | 17.1 | in 2023 | 60 | 14.3 |
| Karnet | 14.7 | 14.6 | in 2023 | 60 | 12.5 |
| Brookton | 15.2 | 14.4 | in 2023 | 59 | 12.4 |
| Beverley | 15.9 | 15.6 | in 2023 | 57 | 13.2 |
| Telfer Aero | 28.8 | 27.9 | in 2020 | 53 | 24.8 |
| Jarrahwood | 14.2 | 14.0 | in 2023 | 45 | 12.2 |
| Jandakot Aero | 16.5 | =16.5 | in 2023 | 37 | 14.4 |
| Windy Harbour | 14.8 | =14.8 | in 2023 | 37 | 13.6 |
| Bunbury | 15.4 | =15.4 | in 2023 | 31 | 13.7 |
| Busselton Aero | 14.6 | 14.5 | in 2023 | 29 | 13.2 |
| Katanning | 14.2 | 14.0 | in 2023 | 28 | 12.0 |
| Wandering | 14.0 | 13.8 | in 2023 | 28 | 11.7 |
| Marble Bar | 28.8 | =28.8 | in 2000 | 27 | 26.0 |
| Garden Island HSF | 17.0 | 16.9 | in 2023 | 25 | 15.5 |
| Collie East | 14.1 | 13.9 | in 2023 | 24 | 12.2 |
| North Walpole | 14.7 | =14.7 | in 2023 | 23 | 13.4 |
Extremes Maps Records Summaries Important notes the top
| Summary statistics for September 2026 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for September 2026 |
Diff from average |
Highest for September 2026 |
Mean for September 2026 |
Diff from average |
Lowest for September 2026 |
Total for September 2026 |
Average for September |
Rank of September 2026 |
Fraction of September average |
|||
| North Kimberley (district 01) | ||||||||||||
| Doongan | 34.3 | -1.1 | 36.0 | 22nd | 17.9 | +0.1 | 14.4 | 1st | 0.0 | 6.6 | lowest | 0% |
| Kalumburu | 35.2 | -0.8 | 38.6 | 9th | 19.6 | +0.3 | 16.8 | 1st | 3.0 | 2.1 | high | 143% |
| Troughton Island | 31.2 | +0.7 | 31.8 | 22nd | 25.2 | +0.5 | 22.9 | 1st | 0.0 | 0.3 | lowest | 0% |
| Truscott | 32.7 | -0.7 | 34.3 | 2nd | 21.7 | -0.3 | 18.9 | 1st | 0.0 | 0.6 | lowest | 0% |
| Wyndham Aero | 37.3 | -0.5 | 39.2 | 22nd | 21.8 | +0.2 | 17.4 | 3rd | 0.2 | 4.3 | average | 5% |
| East Kimberley (district 02) | ||||||||||||
| Halls Creek Airport | 35.5 | +0.4 | 37.7 | 14th | 18.2 | +0.5 | 12.0 | 2nd | 0.0 | 5.6 | lowest | 0% |
| Kununurra Aero | 37.3 | +0.5 | 39.3 | 22nd | 19.1 | -0.7 | 15.7 | 2nd | 0.2 | 5.2 | average | 4% |
| West Kimberley (district 03) | ||||||||||||
| Broome Airport | 31.8 | -0.2 | 38.1 | 17th | 20.8 | +2.2 | 14.6 | 9th | 0.6 | 1.5 | average | 40% |
| Curtin Aero | 36.8 | 0.0 | 38.9 | 22nd | 18.5 | +0.1 | 14.1 | 9th | 0.0 | 2.4 | lowest | 0% |
| Cygnet Bay | 33.4 | +0.7 | 35.3 | 27th | 21.9 | +3.7 | 19.4 | 9th | 0.2 | 1.5 | high | 13% |
| Derby Aero | 36.3 | +0.6 | 38.6 | 14th | 20.7 | +1.3 | 16.6 | 9th | 0.0 | 1.8 | lowest | 0% |
| Fitzroy Crossing Aero | 37.7 | +0.2 | 39.7 | 14th | 20.7 | +2.0 | 14.6 | 2nd | 0.0 | 1.9 | lowest | 0% |
| Yampi Sound (Defence) | 37.0 | 39.7 | 14th | 19.5 | 14.9 | 1st | 4.0 | |||||
| De Grey (district 04) | ||||||||||||
| Bedout Island | 28.9 | +0.1 | 29.7 | 10th | 23.0 | +0.7 | 22.4 | 5th | ||||
| Karratha Aero | 33.1 | +2.0 | 38.3 | 24th | 19.8 | +2.5 | 15.1 | 8th | 0.0 | 1.4 | lowest | 0% |
| Legendre Island | 29.5 | +1.1 | 34.5 | 25th | 22.1 | +1.3 | 19.2 | 7th | ||||
| Mandora | 34.8 | +0.9 | 40.3 | 14th | 17.8 | +2.0 | 12.5 | 8th | 0.2 | 1.1 | high | 18% |
| Marble Bar | 36.7 | +1.8 | 39.5 | 25th | 20.9 | +3.8 | 15.6 | 7th | 0.2 | 4.5 | average | 4% |
| Pardoo Station | 33.7 | +0.3 | 40.7 | 15th | 16.7 | +0.7 | 12.0 | 8th | 0.3 | 2.7 | high | 11% |
| Port Hedland Airport | 35.0 | +2.4 | 40.6 | 15th | 18.8 | +3.1 | 14.0 | 7th | 0.0 | 1.3 | lowest | 0% |
| Roebourne Aero | 35.8 | +2.1 | 40.6 | 23rd | 18.6 | +2.8 | 12.7 | 7th | 0.0 | 2.9 | lowest | 0% |
| Fortescue (district 05) | ||||||||||||
| Barrow Island Airport | 28.7 | +1.4 | 32.7 | 18th | 21.2 | +1.4 | 17.3 | 12th | 0.4 | 1.7 | average | 24% |
| Karijini North | 33.8 | 36.8 | 2nd | 21.1 | 15.5 | 9th | 0.2 | |||||
| Learmonth Airport | 31.4 | +1.7 | 36.7 | 21st | 15.5 | +1.6 | 13.0 | 30th | 18.6 | 2.2 | highest | 846% |
| Mardie | 33.3 | +0.9 | 38.3 | 24th | 17.9 | +3.3 | 13.1 | 7th | 0.2 | 1.4 | high | 14% |
| Onslow Airport | 32.4 | +2.1 | 37.4 | 21st | 18.6 | +2.9 | 15.3 | 6th | 4.8 | 1.7 | high | 282% |
| Thevenard Island | 28.7 | +0.8 | 34.2 | 25th | 20.4 | +1.5 | 16.4 | 6th | 1.2 | 2.4 | average | 50% |
| West Gascoyne (district 06) | ||||||||||||
| Carnarvon Airport | 25.0 | +0.3 | 29.8 | 18th | 15.7 | +1.8 | 11.3 | 5th | 2.4 | 6.3 | average | 38% |
| Gascoyne Junction | 30.3 | +1.8 | 36.5 | 20th | 14.3 | +2.1 | 12.5 | 8th | 3.0 | 2.9 | high | 103% |
| Murchison | 28.7 | +2.1 | 35.6 | 17th | 14.5 | +4.7 | 9.4 | 6th | 15.4 | 8.0 | high | 192% |
| Shark Bay Airport | 25.2 | -1.0 | 29.2 | 18th | 13.3 | +0.4 | 10.0 | 3rd | 2.6 | 7.7 | low | 34% |
| East Gascoyne (district 07) | ||||||||||||
| Newman Aero | 31.9 | +1.3 | 35.4 | 14th | 17.0 | +4.4 | 10.8 | 7th | 5.8 | 5.4 | high | 107% |
| Paraburdoo Aero | 32.8 | +1.3 | 36.8 | 17th | 17.8 | +3.7 | 13.6 | 5th | 2.4 | 4.2 | high | 57% |
| Murchison (district 07A) | ||||||||||||
| Meekatharra Airport | 28.4 | +2.5 | 35.1 | 18th | 15.1 | +3.4 | 11.0 | 8th | 14.8 | 4.9 | high | 302% |
| Mount Magnet Aero | 26.1 | +1.1 | 34.6 | 18th | 12.7 | +2.0 | 7.6 | 3rd | 17.2 | 10.3 | high | 167% |
| Paynes Find | 25.1 | +1.1 | 34.2 | 18th | 10.8 | +2.6 | 3.9 | 3rd | 32.0 | 13.9 | high | 230% |
| North Coast (district 08) | ||||||||||||
| Dalwallinu | 23.1 | +1.6 | 33.3 | 17th | 8.2 | +1.2 | 3.0 | 13th | 1.6 | 22.2 | lowest | 7% |
| Geraldton Airport | 23.1 | -0.3 | 31.0 | 16th | 10.3 | +1.0 | 6.1 | 3rd | 31.4 | 28.8 | average | 109% |
| Kalbarri | 24.0 | -0.2 | 27.2 | 11th | 11.5 | +0.5 | 7.0 | 3rd | 9.9 | 22.9 | low | 43% |
| Morawa Airport | 25.8 | +2.3 | 35.5 | 17th | 9.8 | +1.9 | 4.0 | 3rd | 0.8 | 21.4 | lowest | 4% |
| Mullewa | 25.8 | +2.2 | 34.5 | 17th | 10.0 | +1.3 | 5.0 | 9th | 5.3 | 21.2 | low | 25% |
| North Island | 22.9 | +0.6 | 25.9 | 18th | 16.5 | +0.5 | 13.2 | 18th | 14.4 | 18.6 | average | 77% |
| Wongan Hills | 22.9 | +2.0 | 32.8 | 17th | 11.8 | +4.1 | 8.0 | 13th | 5.8 | 29.0 | v low | 20% |
| Central Coast (district 09) | ||||||||||||
| Badgingarra Research Stn | 21.5 | +0.8 | 28.9 | 16th | 9.3 | +1.6 | 4.1 | 13th | 11.2 | 47.3 | v low | 24% |
| Bickley | 19.1 | +1.3 | 27.8 | 16th | 10.3 | +1.9 | 7.1 | 9th | 45.8 | 122.5 | v low | 37% |
| Garden Island HSF | 20.5 | +1.4 | 29.3 | 16th | 13.5 | +1.5 | 10.2 | 1st | 37.6 | 61.6 | low | 61% |
| Gingin Aero | 22.3 | +1.3 | 31.1 | 17th | 9.8 | +2.3 | 4.3 | 24th | 18.4 | 74.0 | v low | 25% |
| Jandakot Aero | 21.9 | +1.6 | 30.1 | 16th | 11.1 | +2.7 | 6.8 | 1st | 42.6 | 83.0 | low | 51% |
| Jurien Bay | 22.5 | +1.0 | 29.2 | 16th | 11.7 | +1.7 | 8.4 | 23rd | 13.1 | 42.3 | low | 31% |
| Karnet | 19.2 | +1.5 | 27.5 | 17th | 10.2 | +2.8 | 3.7 | 14th | 54.4 | 129.0 | v low | 42% |
| Lancelin (Defence) | 21.6 | 30.4 | 16th | 11.5 | 5.8 | 13th | 21.6 | |||||
| Millendon (Swan Valley) | 22.4 | 31.3 | 17th | 11.1 | 6.4 | 24th | 22.8 | |||||
| Pearce RAAF | 22.3 | +2.0 | 31.2 | 17th | 11.2 | +2.3 | 6.2 | 2nd | 21.8 | 67.3 | v low | 32% |
| Perth Airport | 22.3 | 30.7 | 16th | 11.8 | 7.1 | 29th | 28.6 | |||||
| Perth Airport M.O. | 22.7 | +2.3 | 30.9 | 16th | 11.5 | +2.6 | 7.1 | 29th | 30.6 | 72.3 | v low | 42% |
| Perth Metro | 22.1 | +1.4 | 30.3 | 16th | 12.0 | +2.3 | 8.3 | 1st | 38.2 | 79.9 | v low | 48% |
| Rottnest Island | 19.8 | +0.8 | 27.8 | 16th | 14.2 | +1.2 | 11.5 | 9th | 32.2 | 51.2 | low | 63% |
| Swanbourne | 21.3 | +1.3 | 30.7 | 16th | 12.9 | +1.8 | 9.6 | 1st | 36.2 | 76.9 | low | 47% |
| South Coast (district 09A) | ||||||||||||
| Albany | 18.8 | +1.4 | 31.8 | 17th | 12.1 | +2.7 | 9.4 | 10th | 61.1 | 100.8 | low | 61% |
| Albany Airport | 19.4 | +0.8 | 31.1 | 17th | 10.3 | +2.0 | 6.2 | 11th | 70.4 | 91.7 | average | 77% |
| Bridgetown | 17.3 | -0.6 | 18.8 | 8th | 8.1 | +2.1 | 2.8 | 7th | 24.6 | 84.0 | v low | 29% |
| Bunbury | 20.1 | +1.3 | 27.4 | 16th | 10.7 | +2.1 | 5.0 | 1st | 41.0 | 78.2 | low | 52% |
| Busselton Aero | 19.7 | +1.2 | 26.2 | 16th | 9.4 | +1.5 | 5.3 | 7th | 50.0 | 74.0 | low | 68% |
| Cape Leeuwin | 19.1 | +1.9 | 25.3 | 18th | 13.3 | +1.5 | 10.6 | 10th | 78.0 | 88.8 | average | 88% |
| Cape Naturaliste | 19.9 | +2.4 | 25.4 | 16th | 11.9 | +1.5 | 8.3 | 26th | 64.8 | 74.7 | average | 87% |
| Collie East | 19.7 | +1.0 | 28.2 | 16th | 8.5 | +2.8 | 3.2 | 11th | 34.4 | 85.1 | low | 40% |
| Donnybrook | 21.5 | +2.6 | 30.0 | 16th | 10.9 | +3.8 | 7.1 | 11th | 49.4 | 101.3 | low | 49% |
| Dwellingup | 19.5 | +2.1 | 28.1 | 16th | 9.5 | +3.0 | 4.9 | 1st | 76.6 | 128.5 | low | 60% |
| Esperance | 21.3 | +1.7 | 32.5 | 17th | 12.4 | +2.8 | 7.7 | 2nd | 24.4 | 59.9 | v low | 41% |
| Esperance Aero | 20.4 | +1.2 | 29.9 | 17th | 11.1 | +2.6 | 5.9 | 5th | 27.6 | 55.9 | low | 49% |
| Hopetoun North | 20.6 | +0.5 | 33.9 | 17th | 11.7 | +3.0 | 6.2 | 5th | 69.6 | 47.5 | high | 146% |
| Jarrahwood | 19.9 | +1.5 | 28.4 | 16th | 8.4 | +2.4 | 3.2 | 7th | 71.4 | 101.3 | low | 70% |
| Mandurah | 20.8 | +1.5 | 26.9 | 16th | 13.9 | +2.0 | 10.4 | 1st | 34.6 | 57.1 | average | 61% |
| Manjimup | 18.6 | +1.9 | 27.8 | 17th | 9.3 | +2.0 | 5.8 | 7th | 55.2 | 106.9 | low | 52% |
| Mount Barker | 20.0 | +3.1 | 29.0 | 17th | 8.6 | +1.6 | 6.5 | 1st | 65.8 | 78.6 | average | 84% |
| North Walpole | 18.5 | +0.9 | 29.6 | 17th | 10.8 | +1.5 | 8.1 | 1st | 11.8 | 105.4 | lowest | 11% |
| Rocky Gully | 18.1 | +1.3 | 29.1 | 17th | 9.3 | +2.1 | 4.7 | 1st | 57.0 | 91.4 | low | 62% |
| Shannon | 18.3 | +1.7 | 28.0 | 17th | 9.3 | +1.8 | 5.9 | 1st | 70.0 | 113.1 | low | 62% |
| Windy Harbour | 19.0 | +1.3 | 27.5 | 17th | 10.1 | +0.6 | 5.5 | 9th | 80.8 | 113.2 | low | 71% |
| Witchcliffe West | 18.4 | 24.7 | 16th | 10.0 | 4.9 | 21st | 63.8 | |||||
| North Central (district 10) | ||||||||||||
| Bencubbin | 22.5 | +1.4 | 33.5 | 18th | 8.3 | +1.0 | 5.0 | 14th | 7.2 | 21.3 | low | 34% |
| Cunderdin Airfield | 22.9 | +1.6 | 33.6 | 17th | 8.2 | +3.2 | 1.7 | 13th | 9.4 | 25.6 | low | 37% |
| Goomalling | 23.9 | +2.8 | 33.2 | 17th | 9.8 | +2.8 | 5.1 | 24th | 4.8 | 27.1 | v low | 18% |
| Kellerberrin | 23.1 | +2.2 | 32.0 | 17th | 7.0 | +0.7 | 2.0 | 29th | 14.6 | 25.6 | low | 57% |
| Merredin | 23.4 | +2.6 | 32.1 | 17th | 8.5 | +1.7 | 2.5 | 8th | 12.0 | 25.3 | low | 47% |
| Northam | 22.3 | +1.7 | 33.0 | 17th | 9.6 | +2.7 | 4.5 | 14th | 27.4 | 36.8 | average | 74% |
| York | 22.3 | +1.7 | 33.0 | 17th | 7.9 | +3.1 | 2.4 | 13th | 19.0 | 37.4 | low | 51% |
| South Central (district 10A) | ||||||||||||
| Beverley | 22.5 | +1.9 | 33.2 | 17th | 9.4 | +3.5 | 4.2 | 29th | 17.2 | 35.7 | low | 48% |
| Brookton | 21.9 | +2.5 | 32.4 | 17th | 8.4 | +3.0 | 2.9 | 29th | 12.2 | 38.0 | v low | 32% |
| Corrigin | 21.9 | +2.5 | 32.0 | 20th | 8.3 | +2.5 | 2.0 | 29th | 16.4 | 29.2 | low | 56% |
| Hyden | 22.1 | +1.4 | 31.7 | 17th | 8.8 | +2.8 | 3.0 | 5th | 40.2 | 27.1 | high | 148% |
| Jacup | 19.9 | +0.8 | 32.9 | 17th | 8.8 | +2.5 | 1.1 | 5th | 105.6 | 40.9 | highest | 258% |
| Katanning | 19.6 | +1.9 | 31.8 | 17th | 8.6 | +2.3 | 3.8 | 5th | 72.6 | 47.5 | high | 153% |
| Lake Grace | 20.9 | +1.3 | 31.8 | 17th | 9.4 | +2.8 | 3.5 | 5th | 34.2 | 25.5 | high | 134% |
| Narrogin | 20.3 | +2.4 | 31.6 | 17th | 9.3 | +3.3 | 3.1 | 2nd | 25.0 | 46.0 | low | 54% |
| Newdegate Research Station | 21.0 | +1.8 | 32.2 | 17th | 8.2 | +3.3 | 0.3 | 5th | 59.8 | 32.2 | high | 186% |
| Ongerup | 20.1 | +1.8 | 28.0 | 18th | 9.1 | +2.6 | 3.5 | 5th | 29.7 | 38.2 | average | 78% |
| Ravensthorpe | 21.4 | +1.7 | 32.0 | 18th | 8.9 | +1.4 | 3.5 | 5th | 65.1 | 41.3 | high | 158% |
| Wagin | 19.7 | +1.3 | 28.5 | 18th | 9.2 | +2.9 | 4.0 | 5th | 23.4 | 40.5 | low | 58% |
| Wandering | 20.1 | +1.5 | 30.4 | 17th | 7.9 | +3.1 | 3.1 | 2nd | 14.8 | 55.6 | v low | 27% |
| Eucla (district 11) | ||||||||||||
| Eucla | 22.0 | +0.6 | 35.2 | 19th | 12.6 | +3.4 | 7.1 | 6th | 54.8 | 21.7 | high | 252% |
| Forrest | 23.9 | -0.8 | 34.9 | 19th | 11.5 | +3.3 | 6.7 | 17th | 57.6 | 12.9 | high | 446% |
| South East (district 12) | ||||||||||||
| Bulga Downs | 27.1 | +1.4 | 35.9 | 18th | 13.0 | +3.7 | 8.8 | 5th | 16.8 | 7.7 | high | 218% |
| Kalgoorlie-Boulder Airport | 23.9 | +1.5 | 34.8 | 18th | 11.5 | +3.3 | 4.9 | 5th | 80.2 | 13.3 | high | 603% |
| Laverton Aero | 25.1 | +0.2 | 33.2 | 18th | 14.2 | +3.5 | 8.0 | 5th | 52.4 | 7.5 | high | 699% |
| Leinster Aero | 26.9 | +1.1 | 35.5 | 18th | 14.2 | +3.3 | 8.2 | 5th | 56.2 | 4.1 | highest | 1371% |
| Leonora Aero | 25.1 | -0.4 | 33.2 | 18th | 13.5 | +3.0 | 8.0 | 5th | 136.6 | 7.5 | highest | 1821% |
| Munglinup West | 20.7 | +0.3 | 32.4 | 17th | 9.6 | +2.1 | 3.7 | 5th | 43.0 | 35.7 | average | 120% |
| Norseman Aero | 22.6 | 0.0 | 36.5 | 18th | 10.1 | +3.5 | 1.6 | 5th | 61.6 | 17.9 | high | 344% |
| Salmon Gums Res.Stn. | 22.3 | +1.7 | 36.3 | 18th | 9.1 | +3.4 | 1.6 | 13th | 23.8 | 30.6 | average | 78% |
| Southern Cross Airfield | 23.0 | +0.9 | 34.5 | 18th | 9.3 | +3.6 | 1.7 | 5th | 11.8 | 19.6 | low | 60% |
| North East (district 13) | ||||||||||||
| Carnegie | 29.4 | +0.5 | 35.5 | 19th | 16.2 | +4.6 | 10.0 | 9th | 63.4 | 4.3 | highest | 1474% |
| Giles Meteorological Office | 31.2 | +3.5 | 35.2 | 25th | 18.5 | +5.4 | 14.1 | 10th | 28.4 | 10.8 | high | 263% |
| Telfer Aero | 36.3 | +3.3 | 39.0 | 15th | 21.4 | +4.7 | 15.4 | 9th | 3.6 | 3.2 | high | 112% |
| Warburton Airfield | 29.6 | +1.4 | 36.0 | 23rd | 17.1 | +5.5 | 12.3 | 5th | 75.0 | 5.5 | highest | 1364% |
| Wiluna Aero | 28.7 | 35.0 | 18th | 14.9 | 9.2 | 5th | 33.4 | |||||
| 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 Thursday 1 October 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









