Kualanamu International Airport lies in the tropics at 3.64° N, 98.87° E, on Asia/Jakarta time (UTC+7). 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.
Kualanamu International Airport has 1 runway. The longest, 05/23, measures 12,303 ft by 197 ft, which puts the field in the full-length intercontinental category: a fully loaded Boeing 777 or Airbus A350 can depart for the far side of the world. The surface is asphalt and concrete. It is lit for night operations.