Located in the center of Nigeria, within the Federal Capital Territory (FCT). Abuja is a planned city, and was built mainly in the 1980s. It officially became Nigeria’s capital on 12 December 1991, replacing Lagos, which is still the country’s most populous city. At the 2006 census, the city of Abuja had a population of 776,298, making it one of the top ten most populous cities in Nigeria. However, Abuja has witnessed a huge influx of people into the city which has led to the emergence of satellite towns such as Karu Urban Area, Suleja, Gwagwalada, Lugbe, Kuje and smaller settlements to which the planned city is sprawling towards. The unofficial metropolitan area of Abuja is well over three million. According to Demographia, the population of Abuja’s Urban Area as of 2012 is 2,245,000, making it the fourth largest urban area in Nigeria only surpassed by Lagos, Kano and Ibadan. while Port Harcourt’s urban area which is projected to be almost 2,000,000 is the fifth most populous urban area in Nigeria.
Abuja’s geography is defined by Aso Rock, a 400-metre monolith left by water erosion. The Presidential Complex, National Assembly, Supreme Court and much of the town extend to the south of the rock.
Other sights include the Nigerian National Mosque and the Nigerian National Christian Center. The city is served by the Nnamdi Azikiwe International Airport, while Zuma Rock lies nearby. Abuja is known for being the best purpose-built city in Africa as well as being one of the wealthiest and most expensive; however, the population on the semi-developed edges of the city are living in rural areas such as Mararaba and Karu, Nasarawa State.
Abuja under Köppen climate classification features a tropical wet and dry climate. The FCT experiences three weather conditions annually. This includes a warm, humid rainy season and a blistering dry season. In between the two, there is a brief interlude of harmattan occasioned by the northeast trade wind, with the main feature of dust haze, intensified coldness and dryness.
The rainy season begins from April and ends in October, when daytime temperatures reach 28 °C (82.4 °F) to 30 °C (86.0 °F) and nighttime lows hover around 22 °C (71.6 °F) to 23 °C (73.4 °F). In the dry season, daytime temperatures can soar as high as 40 °C (104.0 °F) and nighttime temperatures can dip to 12 °C (53.6 °F). Even the chilliest nights can be followed by daytime temperatures well above 30 °C (86.0 °F). The high altitudes and undulating terrain of the FCT act as a moderating influence on the weather of the territory.
Rainfall in the FCT reflects the territory’s location on the windward side of the Jos Plateau and the zone of rising air masses with the city receiving frequent rainfall during the rainy season from March to November every year.