Plants on balconies located at the top of buildings or in areas particularly exposed to wind, need to be able to withstand quite a lot. Installing a windbreak would be a good idea here. Basically, plants with large, soft leaves and long stems tend to be very sensitive in locations that are exposed to the wind.
Protective films can be bought that act as an”umbrella” to protect them from the rain. Otherwise, small-leaved, single bloom varieties are preferable for balconies in such situations.
Waterlogging, root rot, downy mildew and other fungal diseases are typical of shady, rainy locations. On terraces, slugs and snails see such a situation as an open invitation to treat themselves to the pots and troughs there.