I've got a 20(well, 22ish) ounce great kilt, 8 yards...Midwesterner, so our weather can get roasty. Hottest weather I have worn it was 97. It's an adjustable bit, so...I adjusted-shallower pleats, and did a roll back to allow more air flow. Not something that can be done with a wee kilt, unfortunately. Also, a linen shirt that comes down far enough is handy.

Mark