The West African Monsoon Explained
A continental climate explainer from the AfricaMeteo Climate Division.
Published June 7, 2026
How it works
The West African Monsoon is driven by the seasonal temperature contrast between the warm continent and the cooler Atlantic. From June to September, moist south-westerly air pushes inland, lifting the rain belt northward into the Sahel and delivering the region’s single wet season.
Why it matters
The monsoon’s timing and strength govern food security for hundreds of millions across the Sahel. A late onset or early withdrawal can mean drought; excessive rain brings flooding. AfricaMeteo tracks its advance daily in the Rainfall & Monsoon section.