Kigali number of rainy days experienced during a year, but has also caused an increase in frequency of torrential rains. Strategic Foresight also characterise Rwanda as a fast warming country, with an increase in average temperature of between 0.7 °C to 0.9 °C over fifty years. As of the 2012 Rwandan census, the population of Kigali was 1,132,686, with an urban population of 859,332. At the time of independence in 1962, Kigali had a population of 6,000, consisting primarily of those associated with the Belgian colonial residency. The population grew considerably after it was named as the independent nation's capital, although
Kigali being built in the 1920s by the Belgian colonial government as a home for civil servants and Swahili traders. This latter group were mostly members of the Islamic faith, which led to Nyamirambo being known as the "Muslim Quarter". Nyamirambo's Green Mosque ("Masjid al-Fatah") is the oldest mosque in Kigali, dating back to the 1930s. Travel publisher Rough Guides has described Nyamirambo as "Kigali's coolest neighbourhood", citing its multi-cultural status and an active nightlife, which is not found in much of the rest of the city. North of Nyamirambo, and west of the CBD is Nyabugogo. Situated at the lowest