Guinea's land boundaries span a total of 4,046 km: with Ivory Coast 816 km, Guinea-Bissau 421 km, Liberia 590 km, Mali 1,062 km, Senegal 363 km, and Sierra Leone 794 km. It has a 320-km coastline, and claims an exclusive economic zone of 200 nmi (370.4 km; 230.2 mi), with a territorial sea of 12 nmi (22.2 km; 13.8 mi).
Climate
The coastal region of Guinea and most of the inland have a tropical climate, with a monsoonal-type rainy season lasting from April to November, relatively high and uniform temperatures, southwesterly winds, and high humidity.
The capital Conakry's year-round average high is 32 °C (89.6 °F), and the low is 21 °C (69.8 °F). Conakry's average annual rainfall is almost 3,800 mm (149.6 in). Sahelian Upper Guinea has a shorter rainy season and greater daily temperature variations. There is a dry season (December to May) with northeasterly harmattan winds.
Guinean forest-savanna mosaic covers most of the country, covering most of Maritime Guinea and Upper Guinea, as well as the lower elevations of the Fouta Djallon. It extends north into Guinea Bissau and Senegal, and east through Mali and Ivory Coast.
Western Guinean lowland forests occupies the southwestern portion of Maritime Guinea around Conakry, and Forest Guinea, along with coastal Sierra Leone, Liberia, and western Ivory Coast.
Guinean mangroves, in the coastal estuaries. Enclaves extend north into Guinea Bissau, Gambia and Senegal, and southeast through Sierra Leone, Liberia, and Ivory Coast.
Resources and environment
The country's natural resources include bauxite, iron ore, diamonds, gold, uranium, hydropower, fish, and salt. It has 12.21% arable land, and 2.85% of the land is permanent crops. 949.2 km2 (2003) of land is irrigated. Guinea's total renewable water resources total 226 km3.
Its terrain is generally flat coastal plain, hilly to mountainous interior. The country's lowest point is the Atlantic Ocean (0 m), and highest is Mont Nimba (1,752 m).
A recent global remote sensing analysis suggested that there were 549km² of tidal flats in Guinea, making it the 47th ranked country in terms of tidal flat area.[2]
This is a list of the extreme points of Guinea, the points that are farther north, south, east or west than any other location.
Northernmost point – the northern section of the border with Senegal, Boké Region*.