Bunbury climate by month
Averages and records for each calendar month at Bunbury, Australia, from 1995 to 2026. The warmest month is February, averaging 30.2°C; the coolest is July at 17.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 30.0°C | 15.5°C | 40.8°C11 January 2014 | 5.3°C4 January 2020 | 31 / 31 |
| February | 30.2°C | 15.9°C | 40.0°C8 February 2016 | 6.0°C2 February 2001 | 30 / 31 |
| March | 27.9°C | 14.6°C | 39.5°C6 March 2007 | 2.2°C27 March 2007 | 31 / 31 |
| April | 24.2°C | 11.8°C | 34.6°C11 April 2020 | 2.4°C27 April 2006 | 30 / 31 |
| May | 21.1°C | 9.3°C | 29.2°C7 May 1996 | −0.1°C25 May 2012 | 31 / 31 |
| June | 18.5°C | 8.1°C | 24.2°C1 June 2019 | −3.0°C17 June 2006 | 30 / 31 |
| July | 17.4°C | 7.3°C | 22.4°C22 July 1997 | −2.1°C30 July 1998 | 31 / 31 |
| August | 17.7°C | 7.7°C | 25.3°C31 August 2023 | 0.0°C9 August 2015 | 31 / 31 |
| September | 18.7°C | 8.5°C | 30.4°C20 September 2014 | −0.3°C10 September 2004 | 29 / 31 |
| October | 21.2°C | 9.7°C | 32.9°C17 October 2009 | 0.2°C10 October 2005 | 30 / 30 |
| November | 24.7°C | 12.1°C | 37.5°C9 November 2019 | 2.1°C18 November 2004 | 29 / 31 |
| December | 27.7°C | 13.7°C | 39.2°C30 December 2012 | 3.2°C6 December 2007 | 31 / 31 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 29 to 31 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.