Wind is often found to blow in a. hot summer day due to

Wind on a hot summer day is primarily driven by the convection current of air. During the day, the Sun's radiation heats the Earth's surface, which then warms the thin layer of air in contact with it through conduction [1]. This warmed air becomes less dense and rises vertically, a process known as convection [2]. As this heated air ascends, cooler air from surrounding areas flows in horizontally to replace it, creating the movement we perceive as wind. While conduction and radiation are essential initial steps in transferring solar energy to the atmosphere, it is the resulting convective currents and the subsequent pressure imbalances that generate large-scale air movement. Convection acts as a 'speedy locomotive' for heat transfer in the troposphere, effectively removing excess heat from the surface and driving local wind patterns like sea breezes [3].

Sources

1. [1] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 8: Solar Radiation, Heat Balance and Temperature > HEATING AND COOLING OF ATMOSPHERE > p. 68
2. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 21: Horizontal Distribution of Temperature > Convection > p. 282
3. [3] Science-Class VII . NCERT(Revised ed 2025) > Chapter 7: Heat Transfer in Nature > In a Nutshell > p. 102