Newborn in Summer

Hi ladies, Our second Bub is due in late November! Our first born is an April baby, so dressing him wasn’t a huge stress as it’s nice and cool. Has anyone had a Bub in the summer, if so what did you dress them in?! I’m very conscious that babies can’t regulate their body temperature and it gets so so hot here in Brisbane. I’m trying to organise clothes and such for the first month and I have 0 idea what to buy! Any help would be greatly appreciated xxx