The good news is that a family tent can be very comfortable if it has the right air conditioning unit, even on a day that is both hot and humid. This is the only device that will be capable of transferring both humidity and heat out of the body of the tent.
In order to transfer both humidity and indoor heat, an AC unit will have to use a lot of electricity. The necessary current cannot be supplied by batteries.
Thus, campers will have to book campsites that have 120 volt electricity.
It will additionally be necessary to have a heavy duty extension cord that is made for use outdoors.
Campers who intend to camp with AC units will also have to check out the camp website and the related electricity page to find out more about using electronics in these areas.
Window air conditioners are easy to find and as far as air conditioners go, these offer the greatest cooling capacity for their cost making them the best portable air conditioner for tent camping.
A window air conditioner unit, however, is structured to fit inside of an open window and will therefore work only when it is put partially inside and out of the actual tent. This means having to adapt the window air conditioner to the tent and even the tent to this unit.