Cairns Intl climate by month
Averages and records for each calendar month at Cairns Intl, Australia, from 1942 to 2026. The warmest month is January, averaging 31.5°C; the coolest is July at 25.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.5°C | 23.8°C | 40.4°C29 January 1967 | 18.2°C10 January 1943 | 84 / 84 |
| February | 31.3°C | 23.8°C | 40.0°C15 February 2020 | 17.9°C1 February 1975 | 84 / 84 |
| March | 30.6°C | 23.2°C | 37.7°C18 March 1993 | 17.7°C31 March 2009 | 84 / 84 |
| April | 29.4°C | 21.8°C | 36.8°C2 April 1988 | 13.0°C15 April 1994 | 84 / 84 |
| May | 27.7°C | 20.0°C | 31.3°C29 May 1958 | 10.1°C26 May 1953 | 83 / 84 |
| June | 26.1°C | 18.0°C | 30.8°C17 June 2002 | 6.2°C23 June 1946 | 83 / 84 |
| July | 25.9°C | 17.2°C | 30.1°C18 July 1964 | 7.3°C19 July 1965 | 84 / 84 |
| August | 26.7°C | 17.4°C | 31.5°C30 August 2025 | 7.8°C7 August 1953 | 84 / 84 |
| September | 28.2°C | 18.8°C | 33.9°C27 September 1945 | 9.3°C5 September 2019 | 83 / 84 |
| October | 29.7°C | 20.7°C | 36.0°C24 October 2002 | 12.4°C1 October 1946 | 83 / 84 |
| November | 30.8°C | 22.4°C | 38.8°C29 November 2018 | 14.6°C26 November 1947 | 84 / 84 |
| December | 31.5°C | 23.4°C | 40.5°C20 December 1995 | 17.1°C13 December 1972 | 84 / 84 |
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 83 to 84 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.