Why do balloons fly in the early morning and late evening?
Winds are generally most calm and favorable the first hours after sunrise and the last hours before sunset. The sun’s uneven heating of the earth’s surface causes strong, variable winds. In the morning, it takes a few hours to heat the earth’s surface enough to generate the thermal activity that creates wind. In the evening, the sun’s intensity has diminished enough to reduce winds to acceptable flight levels. Ideal winds are 3-6 mph.
