Size: Total area 322,460 square kilometers.

Topography: Southern boundary 515-kilometer coastline on Gulf of Guinea. Southeast marked by coastal lagoons southern region, especially southwest, densely forested northern region savanna zone of lateritic or sandy soils, with vegetation decreasing from south to ÍÍÍÍÍÍÍnorth within region. Terrain mostly flat to undulating plains, with mountains in the west.

Climate: Warm, humid climate transitional from equatorial to tropical. In north, heavy rains between June and October (110 centimeters annually) along equatorial coast, some rain in most months, but heaviest between May and July and August and September (200 centimeters annually), with major dry season from December to April. Temperatures average between 25° C and 30° C and range from 10° C to 40° C.

Data as of November 1988