We went in August the last 2 yrs. The time frame was the exact same week both years....
In late August 2007, it was VERY hot and VERY humid/sticky/gross. We dealt with it-we were in Disney after all!

We would hit the park @ opening (or EMH) and stay until lunchtime. At or after lunch, we'd go back to the hotel (Yacht Club) and swim all afternoon. We'd then head into a park for dinner and stay a few hours once the sun went down..... it "felt" cooler then

We stayed hydrated by drinking plenty of water, made sure we wore hats and plenty of sunscreen

We didn't get a drop of rain the entire week-not a single drop. Very unusual for FL in August!!!!
This past August 17-24, 2008, it was not as *nice*

The day we arrived was fine.... then the first full day, we got some rain showers in the afternoon @ AK. It was actually kind of refreshing because it was so humid..... The 2nd and 3rd day (Sun. and Mon) were fine..... (hot, humid, etc) but then Tropical Storm Fay rolled in and it was AWFUL the rest of the week..... the temps dropped, it was sooooo gusty and rainy. The umbrellas were useless as they would come apart. We were pelted with HARD rain.... our shoes never got dry as it rained for the last 5 days we were there...

I just felt gross most of the week

We were staying at the Beach Club and sadly, we almost never got to use Stormalong Bay because it was really on the chilly side during the TS Fay.....
It's purely luck of the draw in what you'll get..... it's totally doable no matter the weather. The crowds were not *that* bad either time-more crowded than late September... but not like a school vacation week in Feb., April, or December IMO.
Good luck in your decision!!! Hope you have a magical time!!!!
