One of the 50's dresses with a good petticoat (or 2) would be fine in the wind I think. It'd blow about but attractively.
I like the blue best of the ones you linked to - the hepburn style dresses are lovely but not so flattering on a big bust (which I'm assuming you have 'cause of the pepperberry link).
LadyVintage have a good choice in both styles from about 30 quid up to 50 ish. But, I'm guessing you'll end up making your own, In which case, some of that weighted thread (for use in net curtains) in the hem would sort any blowy problems.