"[W]eather can be unpredictable in Ireland and most of the time it does the opposite to what is forecasted!! Always have a small umbrella, and, if you can fit it, a rain proof jacket in your handbag! Suncrean, too, is important as when it shines the sun can be strong!
Funky accessories and the requisite umbrella
will have you partying in style in Ireland.
Fashion in in Ireland at the moment varies, as probably the same in the U.S., the '80s are creeping back in quickly! Anything goes though and even in the fanciest of clubs you will find girls casually dressed as well as OTT dressed up! What works for me in the summertime is a couple of tank tops layered, skinny jeans, killer heals (always flat shoes or flip flops in my bag though) and some funky accessories! If the weather is really good (as is at the moment) a nice summer dress, either bare legged or with leggins.
If stuck for space in a suitcase some good accessories would help transform ultra casual day wear into something a little fancier for the evening twined with a pair of high heels—you can't lose!
I would advise bringing something warm as it can get chilly in the evenings, long cardigans are fashionable here at the moment 2.
If all fails and you arrive with a suitcase completely full of inappropriate clothing (which often happens me on holidays) we have a shop here called Penneys—cheap and cheerful and stocks all the latest trends—you could kit yourself with a complete outfit for less than €50!
Have fun and I hope the sun keeps shining

I am loving that black rose ring from Forever 21. It's in my shopping cart! Their jewelry has been awesome this season.
Good advice on the umbrella. There's a reason why it's so green over there.
But Penney's is amazing! Lots of cute tops and dresses for super cheap. It isn't bad quality either...all the clothes I bought there have lasted me.