It gets pretty warm here in South Carolina. Humid too.

We were at a piping competition yesterday, and it as about 33C. No shade either.

Heavier weight wool holds it's shape better. If you have the really light weight it will wrinkle when you sit for any period of time (like driving to something).

I think that when it's hot, you're going to sweat, so any kilt you're wearing will get wet round the middle. May as well look good if you're going to be wearing it, right?

Welcome to the forums!