Guaraní International Airport lies in the temperate mid-latitudes at 25.46° S, 54.84° W, on America/Asuncion time (UTC-3).
Guaraní International Airport has 1 runway. The longest, 05/23, measures 11,154 ft by 148 ft, which puts the field in the long-haul capable category: widebodies operate comfortably, though the very longest sectors may need a payload trade. The surface is asphalt. It is lit for night operations.
Runway 05/23 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.