It now appears our spring trip to the UK may be postponed until fall.   Please let me know which months may be best with this in mind:

The time of fewer folks visiting, meaning when families with school kids are not likely to be visiting. We like kids and families but do not like terribly crowded waits for things to see.

Weather, would September be better than August?  Someone in an earlier thread advised about hot summers and crowds.  We would like to avoid both and have the,  ha ha, ideal conditions.

How bad are the bugs in Scotland in the early fall?  Never hurts to be prepared.

Any advice will be much appreciated.      TomDart