As jersey maxi dresses are something that lots of people wear outside of beach season, they're pretty easy to style in non-swimming situations. All you really need is a non-tote handbag, a bracelet or ring stack
(or both!), shoes that aren't rubber and you're good to go! If the top of your swimwear is going to be showing, make sure it matches the rest of your color scheme; that way it looks like an intentional choice rather than a lack of time.