Geography of French Guiana Geography of French Guiana French Guiana is an overseas region of France, located on the northern coast of South America between Suriname and Brazil. See also the article on the geography of Suriname. Northern South America and part of Caribbean South America, bordering the North Atlantic Ocean, between Brazil and Suriname. South America. Total: 91,000 km².<br> Land: 89,150 km².<br> Water: 1,850 km². Total: 1,183 km.<br> Border countries: Brazil 673 km, Suriname 510 km (disputed).<br> Coastline: 378 km. Exclusive economic zone: territorial sea: . Tropical; hot. Low-lying coastal plains rising to hills and small mountains, see Guiana Shield. Bauxite, timber, gold
Suriname the Atlantic coast. The southernmost borders with French Guiana and Guyana are disputed by these countries along the Marowijne and Corantijn rivers, respectively, while a part of the disputed maritime boundary with Guyana was arbitrated by a tribunal convened under the rules set out in of the United Nations Convention on the Law of the Sea on 20 September 2007. Lying 2 to 5 degrees north of the equator, Suriname has a very hot and wet tropical climate, and temperatures do not vary much throughout the year. Average relative humidity is between 80% and 90%. Its average temperature ranges from