In terms of heat perception, low humidity tends to feel more comfortable than high humidity. This is because humidity affects our body's ability to cool itself through evaporation.
When the air is dry (low humidity), moisture on our skin evaporates more readily, which helps to cool us down. As sweat evaporates from our skin, it takes away heat energy, providing a cooling effect. In low humidity conditions, this evaporation process is more efficient, allowing us to feel cooler even at higher temperatures.
On the other hand, high humidity makes it more difficult for sweat to evaporate from our skin. The air is already saturated with moisture, so the evaporation rate is reduced. As a result, we may feel hotter and more uncomfortable in high humidity because our body's natural cooling mechanism is less effective.
It's important to note that while low humidity may feel more comfortable in terms of heat, extremely low humidity levels can lead to other issues such as dry skin, respiratory irritation, and dehydration. Finding a balance between humidity and comfort is key, and it often depends on personal preferences and environmental factors.