Romamami, when our temps here starts hitting 90F and higher most succulents will slow down, as it tries to conserve its resources. Especially this week, been one baking heat wave. It will start dropping the lower leaves, start closing down their rosettes to protect itself. I do very careful watering. like if I know the higher 90F's are coming, I start 3 days earlier giving them a good drink, so by the time it comes, the roots are cooled down. making sure they have pumice or insoluble crushed granite as top dressing. Then just have to let them endure the heat wave. They are going semi-dormant till the better 70F to 80F temps returns.
Or I do one last thorough watering early in that very day of hot day forecast, before the sun hits them, then wait it out till conditions improve.
My saving grace here is the shade of our city trees, otherwise I will get many toasted succulents here. Good you have installed some shade for them.
