Calvinia climate by month
Averages and records for each calendar month at Calvinia , South Africa, from 1959 to 2025. The warmest month is January, averaging 32.1°C; the coolest is July at 18.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 32.1°C | 13.6°C | 41.9°C3 January 1993 | 0.0°C3 January 1980 | 59 / 63 |
| February | 32.1°C | 13.8°C | 41.1°C4 February 1995 | 2.8°C13 February 1983 | 57 / 62 |
| March | 30.1°C | 12.2°C | 40.0°C3 March 1962 | 1.6°C27 March 1960 | 61 / 61 |
| April | 25.9°C | 9.3°C | 36.4°C5 April 2003 | −2.8°C28 April 2011 | 61 / 62 |
| May | 21.7°C | 6.0°C | 33.1°C1 May 1975 | −9.0°C21 May 1975 | 60 / 61 |
| June | 18.1°C | 4.1°C | 28.4°C1 June 2020 | −6.5°C20 June 1978 | 61 / 62 |
| July | 18.0°C | 3.4°C | 29.2°C14 July 1980 | −7.0°C20 July 1960 | 61 / 62 |
| August | 19.2°C | 3.3°C | 32.8°C27 August 2016 | −5.6°C6 August 2002 | 60 / 64 |
| September | 22.5°C | 4.9°C | 36.3°C30 September 2018 | −4.6°C6 September 2023 | 60 / 60 |
| October | 25.9°C | 7.7°C | 40.5°C31 October 1960 | −3.4°C5 October 1959 | 60 / 61 |
| November | 28.3°C | 10.1°C | 41.2°C28 November 2019 | −3.5°C4 November 1986 | 61 / 62 |
| December | 30.4°C | 12.1°C | 40.3°C26 December 2024 | 0.4°C15 December 2011 | 59 / 61 |
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 57 to 61 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.