Hello Julia Fritz, the processing time for this costume is 20 days. And use the fastest shipping method ( Premium Express , 3-6 days shipping time), it will probably reach you before 6th September .
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it.