What environmental factor should jumpers monitor before exiting an aircraft?

Monitoring wind direction before exiting an aircraft is crucial for jumpers because it directly impacts the safety and planning of their landing. Understanding wind direction helps skydivers anticipate how the wind will affect their descent path and landing accuracy. If a jumper knows the wind direction, they can adjust their body position and flight path during freefall to ensure that they land safely within the designated landing area, particularly as they approach the ground.

While other environmental factors such as temperature, time of day, and humidity have their importance in skydiving, especially in terms of comfort and visibility, wind direction is critical for maneuvering during the jump and ensuring a safe landing. Changes in wind can affect parachute deployment and how the parachute flies once deployed. Therefore, keeping an eye on wind conditions is essential for both safety and effectiveness in performing the jump.