[Voldemort]

When I was there in August, it was very humid and wicked hot. It also rained every afternoon like clockwork, although the rain rarely lasted for more than an hour (and was usually less). The rain never seemed to help with the hot-and-sticky, though. Crowds can vary from year to year; I've seen a wide range of crowdedness during August.

If you can handle the heat, possibly with breaks during the day, and can take advantage of cooler temps in the evening, it could still be a very enjoyable trip.