Yamoussoukro features a tropical wet and dry climate (Aw) under the Köppen-Geiger climate classification system. The city features a lengthy wet season covering the months of March through October, and a shorter dry season that covers the remaining four months. Like many other cities in West Africa, Yamoussoukro is affected by the harmattan, which serves as a primary source of the city's dry season. Despite the lengthy wet season, Yamoussoukro does not see the level of rainfall experienced in Abidjan. Yamoussoukro on average sees roughly  of precipitation annually.