we always have our family holiday the first 2 weeks in oct (although this year will be the last for a while due to exams over the next 4/5 years

) we did corfu recently -sidari and it was high 70's early 80's for the full 2 weeks and no rain we have always hit lucky with the weather

off to kalamaki in Zante this year on 29th sept, so hoping for the same, we also have a teenager and the reviews on here and the web are good
good luck in finding something suitable