Aeoniums do go semi-dormant in summer, so it will only require just a little watering, after all the plant is still alive, just slowing down to conserve its energy during the hottest days. The rosettes drop their leaves keeping it small and tighter form, a natural haircut. It is funny we had a week long sudden cool down last week, and the plant seems to wake up from slumber. But now we are going back to mid 90's...it must be confusing for the plants. Trying to sleep then waking up then sleep again.
I like the color change from burgundy green color during cool weather to all green in summer.