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Geography of Guinea-Bissau

Related subjects: African Geography

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Map Of Guinea Bissau
Satellite image of Guinea-Bissau
Topography of Guinea-Bissau
Typical scenery in Guinea-Bissau

This article describes the geography of Guinea-Bissau.



The climate in Guinea-Bissau is tropical. This means it is generally hot and humid. It has a monsoonal-type rainy season (June to November) with southwesterly winds and a dry season (December to May) with northeasterly harmattan winds.

Guinea-Bissau is warm all year around and there is little temperature fluctuation; it averages 26.3 °C (79.3 °F). The average rainfall for Bissau is 2,024 millimetres (79.7 in) although this is almost entirely accounted for during the rainy season which falls between June and September/October. From December through April, the country experiences drought.

Terrain and ecology

The terrain of Guinea-Bissau is mostly low coastal plain with swamps of Guinean mangroves rising to Guinean forest-savanna mosaic in the east.

The lowest point on Guinea-Bissau is at sea level at the Atlantic Ocean . The highest point on Guinea-Bissau is 300 metres above sea level at an unnamed location in the northeast corner of the country .

Natural resources found in Guinea-Bissau include fish, timber, phosphates, bauxite, clay, granite, limestone and unexploited deposits of petroleum . 8.31% of the land is arable and 250 square kilometres is irrigated. Natural hazards include a hot, dry, dusty harmattan haze that may reduce visibility during the dry season and brush fires . Severe environmental issues include deforestation; soil erosion; overgrazing and overfishing .

Near the Senegal border there have been historic sightings of the Painted Hunting Dog, Lycaon pictus, but that endangered canid may now be extirpated in that locale.

Bissagos Islands

Information from the CIA World Factbook

Western Africa, bordering the North Atlantic Ocean, between Guinea and Senegal
Geographic coordinates
12°00′N 15°00′W
Map references
  • Total: 36,120 km²
  • Land: 28,000 km²
  • Water: 8,120 km²
Slightly less than three times the size of Connecticut
Land boundaries
  • Total: 724 km
  • Border countries: Guinea 386 km, Senegal 338 km
350 km
Maritime claims
  • Exclusive economic zone: 200  nmi (370.4 km; 230.2 mi)
  • Territorial sea: 12 nmi (22.2 km; 13.8 mi)
Mostly low coastal plain rising to savanna in east
Elevation extremes
  • Lowest point: Atlantic Ocean 0 m
  • Highest point: Unnamed location in the northeast corner of the country 300 m
Natural resources
Fish, timber, phosphates, bauxite, unexploited deposits of petroleum
Land use
  • Arable land: 11%
  • Permanent crops: 1%
  • Permanent pastures: 38%
  • Forests and woodland: 38%
  • Other: 12% (1993 est.)
Irrigated land
17 km² (1993 est.)
Natural hazards
Hot, dry, dusty harmattan haze may reduce visibility during dry season; brush fires
Environment—current issues
Deforestation; soil erosion; overgrazing; overfishing
Environment—international agreements
  • Party to: Biodiversity, Climate Change, Desertification, Endangered Species, Law of the Sea, Wetlands
  • Signed, but not ratified: None of the selected agreements
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