How to dress appropriately as a dad living in a tropical climate?

I've never known how to dress well. I can do the business casual, but I want to figure out how to dress well outside of work. T-shirt and old navy jogger shorts aren't it. I started looking into dressing better but a lot of things I've seen so far look very warm (layered) and ill-suited to a tropical climate (pretty much year round). Help me MFA, you're my only hope.