I see a bike on your patio. If you get to Faunsdale, Ala. in the Fall for a "biker" rally, you might see utility kilts on many former military. Besides the kilt, most of the men will be dressed for the climate. That would be t-shirts during the day (if warm) and leather jackets during the night (if chilly). The foot wear will be appropriate for the conditions also.

Think of what you would wear with your kilt for the situation.