1. a hot, dry wind that blows from the Sahara Desert across West Africa toward the Atlantic Ocean, typically occurring from December to February.
Usage: often capitalized; geographical/meteorological term

Examples

• The harmattan winds brought extremely dry conditions to the coastal regions of Ghana.
• During the harmattan season, visibility decreases due to dust carried from the Sahara.
• Farmers in West Africa prepare their crops before the harmattan arrives each winter.
• The harmattan is known for its ability to desiccate vegetation across the region.
• Travelers crossing the Sahel must account for the harmattan's intense heat and aridity.