One person recently asked me why English has 3 words that mean basically the same thing. So today I will explain to you the difference in use between humid, moist, and damp. First of all, they're all variants of wet. The things in question are not dry. There is some water involved. So what's the difference?
Essentially the difference is the stuff that is wet. If the air is wet (weather), it's humid! If food is clearly not dry, and has a wet texture, it's moist! And if it's anything except for food or weather... it's damp! I was just out in a light rain. My clothes are damp. I was out when it was raining cats and dogs! My clothes are soaked and soggy. Soaked and soggy are higher degrees of damp for clothes. Damp clothes retain their form. Soggy clothes change their form: they cling to your body, they sag, etc. Yum! That cake is so moist! I am impressed with how you cooked the turkey; I can't believe how moist it is! Moist food is good. I can't think of an instance where you want food to be dry or soggy. Clearly you undercooked your cake, it appears soggy (it's sagging in the middle, when you cut it the inside is still wet).
Yikes, you waited to eat your cereal too long. Now it's soggy.
Soggy food is sad food. Its form is changed from what is expected. The weather is hot and humid today. I can't stop sweating. It's oppressive and muggy. Muggy means hot and humid.
Hope this helps you be able to use humid, moist, and damp more naturally!