What is the typical effect of high humidity on perceived temperature?

High humidity typically makes temperatures feel warmer due to its impact on the body’s ability to cool itself through the process of evaporation. When humidity levels are high, the amount of moisture in the air increases, which reduces the rate at which sweat can evaporate from the skin. This hinders the body's natural cooling mechanism, leading to a sensation of increased warmth even when the actual air temperature is not significantly high.

This phenomenon is particularly noticeable during hot weather, where high humidity can lead to discomfort and a greater risk of heat-related illnesses, as the body struggles to maintain a stable internal temperature. Therefore, understanding the relationship between humidity and perceived temperature is crucial for assessing comfort levels in various weather conditions.