The parks in Nov are not too crowded, and you can still swim. The temps when we have been there have been between 75 to 85
degrees. The first few yrs that we went to Disney we would go in Nov. It is a great time to visit. I go in the summer now, only because my sons are in High school and Jr High and it is hard for them to miss so many days. We would go during the first 2 weeks and stay for 11 days. Have a great time!