warm clothing for baby due in June?

I wonder if this is the right place to post this thread! If not, moderator please help:)

My second one is due 1st week of June and it's beginning of summer in Europe. My first one was born in summer too, but in India so there was no need for a light jacket even. In Germany normally summers are warm but we do have spells of light breezy weather. I've few more weeks to knit something:) Please can anyone tell me what kind of 'warm' clothing the baby needs until end of summer. Since my parents will be here I think we will also go out often!

Thanks everyone... Latha