Grootfontein Arpt climate by month
Averages and records for each calendar month at Grootfontein Arpt, Namibia, from 1973 to 2025. The warmest month is October, averaging 33.4°C; the coolest is June at 24.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.5°C | 18.4°C | 40.1°C2 January 2016 | 11.6°C16 January 2016 | 27 / 47 |
| February | 30.7°C | 17.9°C | 39.8°C24 February 2024 | 9.3°C9 February 2014 | 25 / 48 |
| March | 29.9°C | 17.1°C | 39.0°C7 March 1998 | 5.5°C29 March 2017 | 30 / 47 |
| April | 28.9°C | 14.4°C | 39.3°C26 April 1999 | 4.2°C23 April 2013 | 29 / 47 |
| May | 26.8°C | 10.1°C | 32.7°C2 May 1983 | −1.0°C30 May 1994 | 30 / 47 |
| June | 24.2°C | 6.2°C | 31.2°C3 June 2023 | −5.0°C17 June 2010 | 24 / 47 |
| July | 24.4°C | 6.5°C | 31.6°C25 July 2024 | −5.6°C24 July 2021 | 25 / 47 |
| August | 27.9°C | 9.4°C | 34.8°C21 August 2015 | −4.9°C9 August 2012 | 25 / 47 |
| September | 31.5°C | 13.6°C | 37.3°C28 September 2024 | −1.2°C1 September 2013 | 27 / 46 |
| October | 33.4°C | 16.9°C | 39.3°C30 October 2016 | 6.3°C1 October 2012 | 30 / 46 |
| November | 32.8°C | 18.0°C | 40.8°C11 November 2015 | 6.5°C17 November 2017 | 31 / 48 |
| December | 32.5°C | 18.3°C | 46.2°C29 December 2016 | 7.5°C14 December 1988 | 29 / 48 |
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 24 to 31 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.