For sure, I've been wondering the same thing about the heat and humidity levels. It's been rough here but not as bad as where you are.
The tent allows me to manipulate the humidity somewhat, because if I keep it all zipped up with damp soil, it will create an environment that is pretty hot and humid. Not sure the temp because I don't have a thermometer in there, but maybe its not a bad idea to get one.
If I open the tent while the soil is damp, the humidity is reduced drastically (given that it's not a humid day here..)
But I'm just not sure if they like more or less humidity, I've been trying to figure that out.. but man.. last night I killed like 10 of them on the leaves by hand, and I can't really see anything aside from bugs on leaves. My vision is not bad at all but I just can't see things in the soil really.. I could go magnifying glass on it, but at this point I'm not even stressing it... When I can afford to buy some neem oil I'll probably get that.. but funds are so tight right now that I'm almost considering saying "f-it" and just letting them feast, if I can't remedy it with what I already have that is.
I hope you're able to get rid of them man.