Invercargill Airport Aws climate by month
Averages and records for each calendar month at Invercargill Airport Aws, New Zealand, from 1948 to 2026. The warmest month is January, averaging 18.7°C; the coolest is July at 9.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 18.7°C | 9.2°C | 32.3°C14 January 2018 | −0.9°C25 January 2000 | 75 / 78 |
| February | 18.7°C | 8.8°C | 32.1°C18 February 1999 | −2.4°C22 February 1959 | 74 / 78 |
| March | 17.5°C | 7.6°C | 28.8°C2 March 1962 | −2.4°C1 March 1959 | 77 / 78 |
| April | 15.1°C | 5.5°C | 25.5°C14 April 2006 | −4.9°C29 April 1988 | 77 / 78 |
| May | 12.3°C | 3.4°C | 22.8°C3 May 2023 | −6.9°C17 May 1958 | 76 / 79 |
| June | 10.0°C | 1.6°C | 18.6°C1 June 2024 | −7.4°C14 June 1974 | 78 / 79 |
| July | 9.7°C | 0.9°C | 18.6°C26 July 2024 | −9.0°C3 July 1996 | 79 / 79 |
| August | 11.2°C | 1.8°C | 21.0°C26 August 1955 | −8.0°C30 August 1966 | 77 / 79 |
| September | 13.1°C | 3.7°C | 23.1°C25 September 2006 | −4.5°C3 September 1950 | 74 / 79 |
| October | 14.6°C | 5.4°C | 25.4°C30 October 2017 | −3.2°C19 October 1966 | 73 / 78 |
| November | 16.0°C | 6.7°C | 27.5°C28 November 1974 | −2.0°C26 November 1998 | 73 / 78 |
| December | 17.7°C | 8.4°C | 30.2°C31 December 2019 | −0.4°C9 December 2010 | 74 / 78 |
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 73 to 79 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.