Antonio Agostinho-Neto International Airport lies in the tropics at 4.82° S, 11.89° E, on Africa/Brazzaville time (UTC+1). Tropical airports contend with heat and humidity, both of which thin the air and lengthen takeoff runs, and with convective storms that build fast in the afternoon.
Antonio Agostinho-Neto International Airport has 1 runway. The longest, 17/35, measures 8,530 ft by 148 ft, which puts the field in the widebody capable category: twin-aisle aircraft can use it, and narrowbodies have length to spare. The surface is asphalt. It is lit for night operations.
Runway 17/35 is aligned roughly south/north, which is the clearest hint you get about the prevailing wind here: runways are built to face the wind that blows most often, because aircraft take off and land into it. Every runway here shares that south/north alignment, so a strong crosswind means a crosswind landing rather than a switch to another strip.