Atlantique Department border Zou Department (named for the Zou River which travels through the department ) to the north and the coastal areas have interconnected lakes and lagoons, it also receives two seasons of rainfall.
Atlantique Department border Zou Department to the north, Oueme Department to the east, Littoral Department to the south-east, the Atlantic Ocean to the south, and Kouffo Department and Mono Department to the west. Zou is one of the twelve departments of Benin, named for the Zou River which travels through the department before emptying into the Atlantic in the south of the country. The coastal areas have interconnected lakes and lagoons and elongated coastlines with wide marshes; part of Lake Nokoue lies within the department. The southern regions of Benin receive two seasons of rainfall from March to July and September to November, while the northern regions of the country receive one season of rainfall from May to September. 
