Geography of Guinea-Bissau

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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.[1]

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.[1]

The lowest point on Guinea-Bissau is at sea level at the Atlantic Ocean.[1] The highest point on Guinea-Bissau is 300 metres above sea level at an unnamed location in the northeast corner of the country.[1]

Natural resources found in Guinea-Bissau include fish, timber, phosphates, bauxite, clay, granite, limestone and unexploited deposits of petroleum.[1] 8.31% of the land is arable and 250 square kilometres is irrigated.[1] Natural hazards include a hot, dry, dusty harmattan haze that may reduce visibility during the dry season and brush fires.[1] Severe environmental issues include deforestation; soil erosion; overgrazing and overfishing.[1]

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.[2]

Bissagos Islands

Information from the CIA World Factbook

  • Total: 36,120 km²
  • Land: 28,000 km²
  • Water: 8,120 km²
  • Total: 724 km
  • Border countries: Guinea 386 km, Senegal 338 km

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