There are several reasons why your hydrangeas are wilting. Hydrangeas require consistent moisture and excess wind can cause them to lose water through their leaves at a faster rate. That will lead to your plant drying out much quicker. Depending on how much you have been watering them, too much water coupled with soil that does not drain well can lead to root rot. Wilt can be a sign of root rot. As far as moving them, if they are planted in the ground this is not the time to be transplanting them, but if they are in containers, you can certainly move them to a location that is more protected from the wind and gets the correct amount of sun. Also, depending on the variety you have, be careful not to over-fertilize your hydrangeas as too much nitrogen can lead to some wilting and affect blooms.
There are several reasons why your hydrangeas are wilting. Hydrangeas require consistent moisture and excess wind can cause them to lose water through their leaves at a faster rate. That will lead to your plant drying out much quicker. Depending on how much you have been watering them, too much water coupled with soil that does not drain well can lead to root rot. Wilt can be a sign of root rot. As far as moving them, if they are planted in the ground this is not the time to be transplanting them, but if they are in containers, you can certainly move them to a location that is more protected from the wind and gets the correct amount of sun. Also, depending on the variety you have, be careful not to over-fertilize your hydrangeas as too much nitrogen can lead to some wilting and affect blooms.