Ouagadougou (/ˌwɑːɡəˈduːɡuː/; Mossi: [ˈwaɡᵊdᵊɡᵊ]) is the capital of Burkina Faso and the administrative, communications, cultural and economic centre of the nation. It is also the country's largest city, with a population of 1,475,223 (as of 2006).The city's name is often shortened to Ouaga. The inhabitants are called ouagalais. The spelling of the name Ouagadougou is derived from the French orthography common in former French African colonies.
Burkina Faso has a primarily tropical climate with two very distinct seasons. In the rainy season, the country receives between 600 and 900 mm (23.6 and 35.4 in) of rainfall; in the dry season, the harmattan – a hot dry wind from the Sahara – blows.
The population of Burkina Faso grows at a rate of 2.997% every year according to the 2007 estimates of CIA. According to the same source, the population of Burkina Faso is 14,326,203 in 2007.