Why Does Humidity Make It Feel Hotter?

The video explains that while people often rely on temperature to gauge how hot it feels outside, humidity plays a crucial role in this perception. The body's cooling mechanism involves sweat evaporation, which is hindered by high humidity, making it feel hotter. Relative humidity is commonly used in forecasts but isn't always accurate in reflecting how hot it feels. Dew point, which measures absolute moisture in the air, provides a better indication of comfort levels. A higher dew point means more moisture, leading to a stickier and more uncomfortable feeling.

Explain why relative humidity may not accurately indicate how hot it feels.

What is a good rule of thumb regarding dew point and comfort levels?