Antonio B. Won Pat International Airport lies in the tropics at 13.48° N, 144.80° E, on Pacific/Guam time (UTC+10). 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 B. Won Pat International Airport has 2 runways. The longest, 06L/24R, measures 12,015 ft by 150 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. Both are lit for night operations.
Runway 06L/24R is aligned roughly north-east/south-west, 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 north-east/south-west alignment, so a strong crosswind means a crosswind landing rather than a switch to another strip.
The runways are not interchangeable. 06R/24L is 10,014 ft against 06L/24R's 12,015 ft, a difference of 2,001 ft, so the shorter one generally takes regional traffic while the longer handles anything heavy.