Nigeria is located on the Gulf of Guinea. Its major cities are located in southern lowlands. The central part of the country contains hills and plateaus. The north consists of arid plains that border the Sahara. Its neighboring countries are Benin, Niger, Chad and Cameroon.

Forest and woodland occurs chiefly in the southern third of the country, which is affected by seasonal rains from the Atlantic which occur from June to September. As one progresses northward the country becomes drier and the vegetation more savanna in type. The northern third of the country forms part of the semi-arid sahel region on the fringes of the Sahara desert.

Nigeria is divided roughly in three by the rivers Niger and Benue, which flow through the country from north-east and north-west to meet roughly in the centre of the country near the new capital city of Abuja. From here the united rivers flow south to the sea at the Niger Delta. Its highest point is Chappal Waddi (2,419 m), on the Cameroonian border.