We visited in August last year for the first time in that month (we had been 4 times in May and once in October) and found neither the crowds or the weather to much in fact we arrived back in the UK on the Sunday and I phoned and booked the villa for August 2004 on the Monday. Yes it was hot at times but you pace yourselves, the best advice that I can give is arrive at the parks as early as you can in the morning, most days we were there at opening time or just after, you can get on most rides with no or minimal wait times and then when it gets to hot you can leave the parks and go to the pool or on the days we had storms we hit the malls and then something to eat and if we felt up to it back to the park in the evening, we were lucky in the respect that we had 3 weeks to spread everything out over. I have had worse crowds in May and at Halloween. You will have a great time.