The Cle Club takes a break during the summer and won't be back until September. You will get plenty of sessions in Dublin but quality can vary dramatically. There are afternoon trad sessions in some of the pubs in Temple Bar on weekdays (e.g. The Oliver St John Gogarty, The Auld Dubliner) but can be hit and miss.

Also check out Aras Chronain on www.araschronain.com before you come over. This is in Clondalkin about 8 miles from Dublin city centre. Friday nights are usually good but during the summer can be hit and miss due to regulars being away on holiday.