Hi Robin,
A visit to a
festival is a great idea, as there is always one on at any time of year. :) You can find an overview of all the festivals and events taking place on the island from the 1st until the 10th of September
here.
Is there a specific type of festival that you are interested in? You're in luck, because there is loads to choose from while you're here. From the
Lisdoonvarna Matchmaking Festival to the
Festival of Food in Dublin.
Just give me a shout if there is anything else you would like to know! :)