Bethlehem Airport weather by month
Averages and records for each calendar month at Bethlehem Airport, South Africa, from 1980 to 2025. The warmest month is January, averaging 27.6°C; the coolest is June at 17.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 27.6°C | 13.3°C | 37.4°C6 January 2016 | 3.8°C3 January 2001 | 41 / 45 |
| February | 27.1°C | 12.9°C | 36.8°C23 February 2024 | 1.8°C16 February 1994 | 35 / 44 |
| March | 25.8°C | 11.0°C | 36.9°C4 March 2024 | 0.0°C19 March 2007 | 40 / 46 |
| April | 22.9°C | 6.7°C | 32.6°C22 April 2024 | −4.0°C29 April 2007 | 39 / 46 |
| May | 20.5°C | 2.1°C | 32.6°C15 May 2025 | −10.0°C24 May 2007 | 39 / 46 |
| June | 17.8°C | −1.5°C | 27.9°C29 June 2025 | −9.3°C19 June 1987 | 39 / 46 |
| July | 17.8°C | −2.1°C | 25.2°C10 July 2019 | −12.5°C3 July 1992 | 38 / 46 |
| August | 20.7°C | 0.5°C | 28.8°C14 August 2025 | −10.2°C21 August 2003 | 38 / 46 |
| September | 24.2°C | 4.7°C | 31.3°C30 September 1983 | −6.8°C7 September 1989 | 39 / 45 |
| October | 25.5°C | 8.2°C | 34.5°C12 October 2024 | −2.9°C4 October 2002 | 40 / 45 |
| November | 26.3°C | 10.3°C | 35.7°C19 November 1988 | 0.2°C25 November 2002 | 40 / 45 |
| December | 27.3°C | 12.4°C | 40.1°C10 December 2024 | 1.1°C6 December 1984 | 38 / 45 |
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 35 to 41 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.