We spent three weeks in May with only one short thunderstorm and few clouds. Great trip except I managed to catch a cold that is persisting into our first week home - definitely diminished my enjoyment.
This forum doesn't allow links or more than a few hundred words, so you'll have to search the Ireland forum to find the trip report.
Nutshell report:
PNW to Dublin, Kilkenny, Cork (3 nts), Bantry, Allihies (2 nts), Dingle (2 nts), Doolin (2 nts), Shannon River (6 nts), Dublin
Our favorites always include ruins, gardens, birds, and trad music.