Cayenne French Guiana is the nation’s capital and lies on the northeast coast of South America. The Creole-style houses sit beside the ruins of the French colonial Fort Cépérou
, which overlooks the Cayenne River. Cayenne has an equatorial climate bordering on a tropical monsoon
climate. Cayenne French Guiana averages roughly 3,750 millimeters, or 150 inches, of rain each year.