We always go from Aug 25th which is usually the start of the last week of august for 2 weeks, so our second week spills over into the first week of sept.
These have traditionally been when crowds start to drop as many schools go back on monday,I cant remember queing more than 30 mins for most major attractions and the TOT is always walk on when we go. MK is still the busiest park though . Also the weather while still HOT and humid there doesn't seem to be rain everyday, as there is in July and most of Augs.
We are going again this year on these dates, so we'll be at the world on monday. I've been checking the weather and webcams for about a week now and i've noticed there doesn't seem to be that monsoon style rain for hrs and hrs, there has been showers etc but it doesnt seem as bad as it was afew weeks ago.
3 days left until our 2 week stay at the WL!! Can't wait!
enjoy your stay aswell