Temps & Brevs
I know this response is way dated, but I thought I'd add my experience for anyone else who is curious.
I have a couple temps as well as brevs in the same enclosure (they get along just fine). I set my vivarium up in a way that half the tank is dry while the other half is saturated by a running waterfall.
Here in Canada the seasons affect the tank changes to some degree. I have had the tank below 70 and above 80 degrees during the night at different times of the year. I believe that having a dry and wet section in the tank gives a diverse climate for the chameleons to choose from.
During the day the tank is around 75 degrees and around 80% humidity.
What I have notices is that the temps love to stay around the waterfall (most likely because of the humidity). They often like to get soaked on the branches and plants that are underneath the waterfall. On the other hand, the Brevs love to stay in the dry area.
Hopefully this information can help! feel free to ask questions!