We have been to Disney World 8 or 9 times during the month of August, and Universal 1 time. The 4th week of August is my favorite because the crowds drop quite a bit. The 3rd week of August is lower attended than the earlier part of the summer and crowds are manageable. However; it is usually very, very hot and humid. We usually plan our day to start very early and stay in the parks until about noon. Then we either head toward a water park or back to the hotel pool. We then return to the parks about 4 to miss some of the heat of the day. Also you need to make sure to drink plenty of water. My kids also carry those little mist stray bottles with them. Even sitting still and not moving at all (like at a show) you still get very warm. Last summer we were there from Aug. 9th - 21st., and while it was still warm and humid it was acutually hotter back in Virginia than it was in Florida. So you really can not always tell. One year we were there when a huricane came through. Give August a try though. We plan on going again this year during this same time.