How to dress a summer baby?!

SmA

Hey mommas! I need some advice on how to appropriately dress my baby boy when he’s born. He’s due August 3rd, I love in northern Ontario and it’s pretty hot in the summer but usually gets super cold quickly starting in October. September is usually pretty warm but then there’s cold winds frequently of course. For his newborn outfits I got a couple summer hats, a few tshirt onsies, a few shorts and a few rompers. I also got him some sleepers and regular hats. So how is he supposed to dress? I’m not sure if they get colder easier than us so they need to layer even if it’s hot/warm? Or do they get hot easily? I’ve never had a summer baby so I need lots of advice! On everything! Walks, sunscreen, bugs, sleeping comfortably in the hot. I just need all your advice