When living in Central Am. The local dress shirt in FS, no jacket. The local dress shirt: 2 versions, long sleeve or short sleeve. In FS, no stockings, usually calf level cool skirt or dress. Shoes depend on season. Monsoon, rubber boots. Normal, nice opened toed for the ladies.
In the KH, males will put on a jacket to give a part. That's about it.
Dress in a presentable manner for the climate and customs.