Yes, as already said it is very, very hot but I wouldn't let that stop you from going to a fantastic and beautiful country. We go every year in August.
Take on board all of the other tips: hats, cream, water spray.
We always go for lunch about 12, somewhere airconditioned, and then back for a siesta till 2/3ish - back to an airconditioned room.
There is always a breeze coming off the sea down at beach and there are umbrellas to sit under, this is very comfortable, and you can have a quick dip too.
Sometimes we lounge in hotel reception areas/bars which are all cool marble and, again, air conditioned. We play cards, read papers/books or go on the internet till it gets cool enough to go outside.
I'm sure you will work it out and have a fab time