Cotonou/Cadjehoun Arpt climate by month
Averages and records for each calendar month at Cotonou/Cadjehoun Arpt, Benin, from 1941 to 2025. The warmest month is March, averaging 32.2°C; the coolest is August at 28.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 31.1°C | 24.1°C | 38.0°C22 January 1981 | 17.0°C10 January 1957 | 58 / 84 |
| February | 31.9°C | 25.4°C | 38.6°C27 February 1979 | 17.0°C17 February 1990 | 55 / 84 |
| March | 32.2°C | 25.9°C | 38.4°C28 March 1987 | 18.0°C23 March 1981 | 57 / 84 |
| April | 31.9°C | 25.6°C | 39.4°C4 April 1985 | 20.0°C17 April 1982 | 52 / 84 |
| May | 31.1°C | 24.6°C | 38.9°C19 May 1952 | 19.6°C11 May 1963 | 53 / 84 |
| June | 29.4°C | 23.7°C | 36.0°C14 June 1987 | 15.2°C11 June 1994 | 55 / 84 |
| July | 28.2°C | 23.7°C | 33.5°C19 July 1947 | 18.8°C22 July 1958 | 62 / 83 |
| August | 28.0°C | 23.4°C | 31.8°C25 August 1951 | 19.8°C15 August 1961 | 58 / 82 |
| September | 28.7°C | 23.6°C | 35.0°C15 September 2004 | 20.0°C23 September 1955 | 49 / 82 |
| October | 29.8°C | 23.8°C | 36.0°C22 October 1981 | 19.1°C11 October 1960 | 54 / 83 |
| November | 31.2°C | 24.4°C | 35.4°C28 November 1944 | 21.0°C5 November 1941 | 54 / 83 |
| December | 31.3°C | 24.1°C | 37.0°C11 December 1981 | 17.9°C30 December 1974 | 54 / 83 |
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 49 to 62 years each.
See what Cotonou/Cadjehoun Arpt is doing right now
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.