When to Go
While certainly not the wettest part of Ireland (the West gets that dubious distinction), the counties around Dublin do get their fair share of rain. June, July, August, and September tend to be the driest months, and the good news is that the summer showers are usually light and short-lived. Wicklow, with all its hills and valleys, seems to have an obscure microclimate of its own, so don't rely too much on the weather forecast to get it right.