We go every July. The weather is hot, sticky and humid. It normally rains every afternoon for a 1/2 hr. or so. Its welcomed, because it sometimes cools things down a bit. The crowds are fairly heavy. We always go thinking that the crowds will be beyond belief, but we are usually pleasantly surprised that we don't really wait in lines tooo long. It gets hot enough that you may want to go back to your resort, for an afternoon swim and some rest. As long as you wear comfortable shoes, clothes and drink plently of water, as well as bringing one of those water mist fans, you'll have a great time. We get there the week after July 4th and those crowds are thinning out by then. Its still crowded and very hot, but to us is more than bearable.