Humid is usually related to weather or air. Damp is usually a negative term to use for something that feels wet but it could relate to air inside, as in my base

Humid is usually related to weather or air. Damp is usually a negative term to use for something that feels wet but it could relate to air inside, as in my basement feels damp or my raincoat is still damp from yesterday. Humid is usually related to I weather and a lot of the time hot weather but not always. It’s so humid today it feels like a jungle outside.