In reply to jon:
Hi Jon,
I've only got two climbing trips to Ireland to go on, late June/early July 2016 and late August/early September 2016, but comparing those trips with my memories of the Midge horror I've suffered in Scotland over the years, I'd say that Ireland is nowhere near as bad as the west coast of Scotland on the horror scale.
We climbed at Fair Head on both occasions and, such was the force of the wind, Midges were the least of our problems... Best trad crag I've climbed on in the UK, by the way.
Likewise the Burren — another excellent, wind blasted crag.
June might be a better bet than August for Fair Head, for the simple reason that the annual Fair Head 'festivel' is held in early June and, even if you don't chose to be there during that busy weekend you'll benefit from cleaned/chalked routes.
Pete.