Busselton Rgnl climate by month
Averages and records for each calendar month at Busselton Rgnl, Australia, from 1997 to 2026. The warmest month is January, averaging 30.4°C; the coolest is July at 16.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 30.4°C | 14.3°C | 41.1°C20 January 2025 | 4.0°C11 January 2002 | 29 / 29 |
| February | 30.2°C | 14.8°C | 40.1°C15 February 2024 | 5.3°C3 February 2010 | 27 / 29 |
| March | 27.9°C | 13.7°C | 39.0°C6 March 2007 | 3.1°C29 March 2007 | 29 / 29 |
| April | 23.9°C | 11.1°C | 34.2°C6 April 2024 | 3.0°C30 April 1998 | 29 / 29 |
| May | 20.5°C | 9.0°C | 29.0°C1 May 2003 | 0.0°C25 May 2006 | 29 / 29 |
| June | 17.9°C | 7.7°C | 23.6°C3 June 2012 | −1.0°C17 June 2006 | 28 / 29 |
| July | 16.9°C | 7.0°C | 22.0°C8 July 2006 | −0.4°C15 July 2023 | 29 / 29 |
| August | 17.3°C | 7.3°C | 24.3°C30 August 2026 | 0.0°C29 August 2004 | 29 / 29 |
| September | 18.5°C | 7.9°C | 28.8°C27 September 2023 | 0.3°C7 September 2023 | 28 / 29 |
| October | 21.3°C | 8.7°C | 32.2°C17 October 2009 | 0.8°C11 October 2010 | 27 / 29 |
| November | 25.0°C | 10.7°C | 38.1°C23 November 2023 | 0.9°C7 November 2018 | 29 / 29 |
| December | 28.3°C | 12.5°C | 41.4°C26 December 2021 | 2.2°C6 December 2007 | 29 / 29 |
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 27 to 29 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.