Humid (潮湿): "It's really humid today; I can feel the moisture in the air."
Muggy (闷热潮湿):
"The weather is so muggy; I can't wait for a break in this humidity."
Damp (潮湿):
"After the rain, everything feels damp and sticky."
Clammy (湿冷的):
"The air is so clammy; I need to find some air conditioning."
Steamy (湿热的):
Example: "It's a bit steamy outside, isn't it? Feels like a sauna."
Sultry (闷热的):
Example: "The sultry weather makes it challenging to stay comfortable."
Sticky (粘腻):
Example: "The heat is making everything feel sticky; I can't escape it."
Close (湿热而沉闷):
Example: "The air is close today; it's making it hard to breathe."