There is not much seasonal variation in Djibouti's climate. Hot conditions prevail year-round along with winter rainfalls. Mean daily maximum temperatures range from 32 to 41 °C (90 to 106 °F), except at high elevations, where the effects of a cold offshore current can be felt. In Djibouti city, for instance, average afternoon highs range from 28 to 34 °C (82 to 93 °F) in April.
Djibouti was originally inhabited by nomadic tribes, the main ones being the Afars and the Issas, who are strongly linked to Ethiopia and Somalia respectively. In 1862, the French signed a treaty with the Afar leaders, giving them land on the north coast. During the rest of the 19th century, Djibouti gradually became more firmly associated with France.
According to the 2010 revision of the UN's World Population Prospects, the total population was 889,000 in 2010 compared to 62,000 in 1950. The proportion of children below the age of 15 in 2010 was 35.8%, 60.9% was between 15 and 65 years of age, while 3.3% was 65 years or older.