We were just there the week of Sept 13-20th, so pretty much right after you're thinking of going. I can't speak to the few weeks prior, but honestly our crowd levels were great. We did not wait long at all for rides. We waited for Quick Service the longest, haha - probably from Free Dining! But seriously the crowds were awesome and from what I understand the weeks during/after Labor Day generally have low crowd levels. It was super hot, but we loved it!