Kunming Changshui International Airport lies in the temperate mid-latitudes at 25.11° N, 102.94° E, on Asia/Shanghai time (UTC+8).
Kunming Changshui International Airport has 2 runways. The longest, 04/22, measures 14,764 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. Surfaces vary across the field (asphalt, concrete). Both are lit for night operations.
Runway 04/22 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. 03/21 is 13,123 ft against 04/22's 14,764 ft, a difference of 1,641 ft, so the shorter one generally takes regional traffic while the longer handles anything heavy.
The field sits at 6,903 ft, high enough that density altitude matters. Takeoff runs stretch on warm afternoons and climb performance is weaker than the same aircraft would manage at sea level.