45 of 85 destinations scored for coast and lakes are prime in September — 80 or better on conditions alone. Highest: Jungfrau Region (98), Bavarian Alps (96), Cape Cod & the Islands (94). In August 26 are prime; in October, 31.
Every destination scoring 55 or better for coast and lakes in September, highest first. Ties are listed alphabetically.
Most places have one or two months that are genuinely better — and a booking moment that comes a lot earlier than the trip. I’ll write when one of those is coming up. No schedule, no filler.
Somewhere missing from the list? Write to info@pennyswindow.com and I’ll score it.