+1 to this sentiment. September is the very best month of all at Jersey Shore - we call is “Local Summer” 
School here doesn’t start until after Labor Day, so I have a little time before the unsettled feelings really kick in. I’ll be bringing D20 back up to Boston over Labor Day weekend, and will miss her so. It has been wonderful having her here this summer and I fear it is likely the last one she will really spend home. 
D24 will be heading into Jr. year and has a lot of anxiety over a very challenging semester ahead of her, plus all of the usual jr. year and growing up stresses. She (and by extension, I) wish summer could last forever if only to forestall the impending stress.