Adelaide Intl climate by month
Averages and records for each calendar month at Adelaide Intl, Australia, from 1955 to 2026. The warmest month is January, averaging 28.3°C; the coolest is July at 15.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 28.3°C | 16.2°C | 45.8°C24 January 2019 | 7.9°C5 January 1956 | 71 / 71 |
| February | 28.1°C | 16.3°C | 43.6°C14 February 2004 | 8.1°C21 February 1972 | 71 / 72 |
| March | 25.6°C | 14.6°C | 40.8°C6 March 1986 | 4.6°C30 March 1970 | 72 / 72 |
| April | 22.3°C | 12.0°C | 36.9°C2 April 2005 | 3.1°C14 April 1963 | 72 / 72 |
| May | 18.6°C | 9.7°C | 30.4°C9 May 2013 | −0.3°C19 May 1973 | 72 / 72 |
| June | 16.0°C | 7.8°C | 26.1°C8 June 2005 | −2.6°C8 June 1982 | 72 / 72 |
| July | 15.0°C | 7.1°C | 25.9°C29 July 1975 | −1.1°C8 July 1958 | 72 / 72 |
| August | 16.0°C | 7.7°C | 29.9°C30 August 2007 | −0.3°C5 August 2020 | 72 / 72 |
| September | 18.3°C | 9.0°C | 33.9°C30 September 1961 | 1.1°C4 September 1959 | 71 / 72 |
| October | 21.2°C | 10.8°C | 38.0°C31 October 1987 | 3.1°C9 October 2003 | 71 / 71 |
| November | 24.0°C | 12.9°C | 43.1°C19 November 2009 | 4.2°C3 November 1974 | 71 / 71 |
| December | 25.9°C | 14.7°C | 43.9°C19 December 2019 | 5.9°C1 December 1968 | 71 / 71 |
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 71 to 72 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.