WOLLONGONG AIRPORT climate by month
Averages and records for each calendar month at WOLLONGONG AIRPORT, Australia, from 1999 to 2026. The warmest month is January, averaging 26.9°C; the coolest is July at 17.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 26.9°C | 17.2°C | 45.0°C1 January 2006 | 8.6°C18 January 2018 | 27 / 27 |
| February | 26.4°C | 17.3°C | 41.0°C5 February 2000 | 9.7°C7 February 2014 | 27 / 27 |
| March | 25.4°C | 15.8°C | 39.6°C18 March 2018 | 5.0°C31 March 2008 | 26 / 27 |
| April | 23.4°C | 12.3°C | 34.8°C12 April 2018 | 2.0°C23 April 2006 | 26 / 27 |
| May | 20.6°C | 9.2°C | 28.0°C3 May 2007 | −1.0°C20 May 2000 | 27 / 27 |
| June | 18.1°C | 7.3°C | 25.0°C14 June 2004 | −2.0°C15 June 2006 | 27 / 28 |
| July | 17.8°C | 6.5°C | 28.0°C30 July 2017 | −1.7°C23 July 2018 | 27 / 28 |
| August | 19.0°C | 6.8°C | 29.4°C30 August 2024 | −2.0°C9 August 2009 | 28 / 28 |
| September | 21.5°C | 8.7°C | 35.1°C19 September 2023 | 0.6°C3 September 2012 | 27 / 28 |
| October | 23.1°C | 11.0°C | 38.0°C13 October 2004 | 1.0°C2 October 2002 | 27 / 27 |
| November | 24.1°C | 13.6°C | 41.8°C20 November 2015 | 4.5°C12 November 2025 | 27 / 27 |
| December | 25.7°C | 15.3°C | 43.4°C19 December 2019 | 6.1°C6 December 2012 | 26 / 27 |
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 26 to 28 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.