A day with low humidity
Low humidity. High humidity will prevent sweat from evaporating and hence make you feel warmer.

Not necessarily. Humidity is how much water is in the air and it makes the temperature feel warmer, but really doesn't.

Humidity is how much water content is in the air aroundus.I think humid specific means " as we perceive or feel it " This is why you feel hot on a humid day at 80 degree with 90 percent humidity than lets say a day that's 100 degrees with 25 percent humidity (one hundred percent humidity equals Rain) With high humidity we cannot cool off by perspiration,making us Feel warmer than it might actually be.And the reverse can of course be said the less humidity the better we can handle a very high temperature day.

Humidity is water in the air. It makes it feel warmer than what the real temperature is. But no, you cannot feel humidity therefor you cannot feel its dampness

You can feel water in the air when the humidity is high. The humidity is the amount of moisture in the air. The humidity gets high when the temperature rises.