I brew outside my garage which is on the side of my house facing west. Mostly for the view but also have hot and cold water in the garage makes for easy clean up
Sounds like you have you cooling process down so in my opinion your ok brewing outside. I'm in the Pac NW so don't have the humidity you do or the bugs. I just have mosquitoes, flys and moths after dark.
I prefer to brew outside. So much more relaxing and a pretty goid view. Anything landing in your pot breboil isnt an issue. Ive never had much issue post boil either.