Cotonou weather by month

Averages and records for each calendar month at Cotonou, Benin, from 1941 to 2025. The warmest month is March, averaging 32.2°C; the coolest is August at 28.0°C.

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 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.