Amalfi Coast Weather in September
 

I am planning a trip to Positano and Capri in September. Would the week of September 11 or 18 be better in terms of weather? We would like to mostly be sun bathing in the beach and take boat trips.

The earlier the better but it may depend on finding accommodations at this late date.

We were there two years ago around the 11th-22nd and had great weather but still hot. I don't think there will really be much difference between the two weeks in terms of the weather.

You might want to play around with this web-site:
https://www.timeanddate.com/weather/@11127999/climate