Sierra Leone

Republic of Sierra Leone
Reference work entry


  • Capital: Freetown

  • Population estimate, 2015: 6.45 m.

  • GNI per capita, 2014: (PPP$) 1,780

  • HDI/world rank, 2014: 0.413/181

  • Internet domain extension: .sl

Civil Aviation

Freetown Airport (Lungi) is the international airport. The national carrier is Leone Airways, operated by Arik Air (a Nigerian airline) under a joint venture agreement. In 2012 scheduled airline traffic of Sierra Leone-based carriers flew 2.6 m. km; passenger-km totalled 153.7 m. in the same year.


A tropical climate, with marked wet and dry seasons and high temperatures throughout the year. The rainy season lasts from about April to Nov., when humidity can be very high. Thunderstorms are common from April to June and in Sept. and Oct. Rainfall is particularly heavy in Freetown because of the effect of neighbouring relief. Freetown, Jan. 80 °F (26.7 °C), July 78 °F (25.6 °C). Annual rainfall 135″ (3,434 mm).

Constitution and Government

In a referendum in Sept. 1991 some 60% of the 2.5 m. electorate voted...

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