Evaporative cooling is a prominent solution for indoor climate control, particularly in arid and semi-arid regions. This study delves into the pivotal role of air velocity in the operation and efficacy of pad evaporative cooling systems. The interaction between air velocity and evaporative cooling efficiency is explored through comprehensive experimental analysis and computational simulations. The investigation encompasses diverse air velocities to gauge their influence on temperature reduction and energy consumption. Experimental data reveals a distinct pattern of air temperature drop: 1.7 °C at 5.1 m/s, 1.2 °C at 5.7 m/s, and 1.0 °C at 6.5 m/s. Strikingly, the highest saturation efficiency of 42.5% is attained at an air velocity of 5.1 m/s, surpassing efficiencies of 5.7 m/s by 25.6% and 6.5 m/s by 41.17%—notably, the cooling capacity peaks at approximately 740 W for an air velocity of 1.5 m/s.