Sailing the ionian
Unless you sail here often, taking 2 weeks rather than one is a good option because it takes a bit of time to relax with the boat and the Greek ways of boating. There is plenty to see and do so we felt that 2 weeks was ideal.
We were also pleased we came after peak season because the water was still warm but the weather wasn’t too hot. It’s a fine line to tread because many of the tavernas and other services will wrap up by the end of October. One drawback for us was that we didn’t have a lot of wind. Not sure if that is common in September.