Does Discover Cove usually sell out in September

[myjourney]

Thinking of a DC day at the end of September but would like to wait until a week out to see what kind of weather is headed that way. Do the September days usually fill up a week before?

 

[CAPSLOCK]

*Probably* not, but the price tends to increase booking that close to your day. It can go up quite a lot, depending on availability.