Do you sweat more on a dry day or humid if yes why?

Sweating is the body's natural way of cooling itself. When the body is hot, it releases sweat, which evaporates and cools the skin. The rate of evaporation depends on the humidity in the air. The more humid the air, the slower the rate of evaporation and the less effective sweating is at cooling the body. This is because the water vapor in the air prevents the sweat from evaporating as quickly.

As a result, people tend to sweat more on humid days than on dry days. On a dry day, the sweat evaporates more quickly, so the body is able to cool itself down more effectively, and you may not sweat as much. On a humid day, the body has to work harder to cool itself down, and this results in more sweating.