When it gets hot (30c+) you make a shade cover and when the mosquitos come in you make a screen. Put the two needs together and shazam! You’ve got a burlap sack thing.
We bought a 24′ by 3′ roll of burlap cloth which makes about a two layered 8′ by 8.5′ piece. We think it keeps the bugs out (some must get in through the door though) and the two layers sewn together (on a sewing machine woooh!) block some sun from entering the yurt.
Cooking on the outdoor kitchen or fire pit is also essential for keeping the yurt cool these days.