Belmont Perth Airport climate by month
Averages and records for each calendar month at Belmont Perth Airport, Australia, from 1944 to 2026. The warmest month is February, averaging 32.1°C; the coolest is July at 18.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.9°C | 17.1°C | 46.0°C31 January 1991 | 6.0°C8 January 1945 | 82 / 82 |
| February | 32.1°C | 17.6°C | 46.7°C23 February 1991 | 5.7°C13 February 1981 | 82 / 82 |
| March | 29.9°C | 16.0°C | 43.8°C10 March 2003 | 3.1°C27 March 2007 | 82 / 82 |
| April | 25.7°C | 13.0°C | 39.6°C11 April 2020 | 1.2°C27 April 1960 | 82 / 82 |
| May | 21.9°C | 10.4°C | 35.3°C1 May 2002 | −0.4°C29 May 1964 | 82 / 82 |
| June | 19.1°C | 9.0°C | 27.8°C5 June 1975 | −1.3°C17 June 2006 | 83 / 83 |
| July | 18.0°C | 8.1°C | 25.7°C21 July 1994 | −1.0°C3 July 2010 | 83 / 83 |
| August | 18.7°C | 8.1°C | 30.2°C31 August 2023 | 0.1°C15 August 2004 | 83 / 83 |
| September | 20.4°C | 8.9°C | 34.9°C27 September 2023 | −0.2°C1 September 1956 | 82 / 83 |
| October | 22.9°C | 10.4°C | 37.7°C26 October 1961 | 1.2°C10 October 2005 | 82 / 82 |
| November | 26.2°C | 12.9°C | 41.1°C16 November 2019 | 3.2°C18 November 2004 | 82 / 82 |
| December | 29.3°C | 15.1°C | 44.5°C26 December 2007 | 4.8°C2 December 2002 | 82 / 82 |
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 82 to 83 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.