Population estimate, 2015: 40.25 m.
GNI per capita, 2014: (PPP$) 3,809
HDI/world rank, 2014: 0.479/167
Internet domain extension: .sd
There is an international airport at Khartoum, which handled 2,178,097 passengers and 59,299 tonnes of freight in 2009. The national carrier is the government-owned Sudan Airways, which operates domestic and international services. In 2006 scheduled airline traffic of Sudan-based carriers flew 9 m. km, carrying 563,000 passengers (365,000 on international flights).
Lying wholly within the tropics, the country has a continental climate and only the Red Sea coast experiences maritime influences. Temperatures are generally high for most of the year, with May and June the hottest months. On the Red Sea coast, most rain falls in winter. Khartoum, Jan. 64 °F (18.0 °C), July 89 °F (31.7 °C). Annual rainfall 6″ (157 mm). Annual rainfall 39″ (968 mm). Port Sudan, Jan. 74 °F (23.3 °C), July 94 °F (34.4 °C). Annual...