I personally don't think any relatively small and light tent I have seen will be a perfect fit for the tropics. In my experience you are going to have a hard time with ventilation unless you bring some sort of battery powered fan. You may want to try a tent minus the rain fly with a large tarp set up over it for the rain. This would maximize ventilation and still give you good rain protection. Even with this setup...when the rain stops and the area heats up with no wind...you are talking 100% humidity in 90 degree (F) plus temps. It can be challenge to get your mind wrapped around that situation.

It is all in your mind...good luck sK

PS If you are use to the area you are going...then No Worries. Took me about a month to get mentally dialed in to the 95-100% humidity and 95 degree F temps. After that, no problem.