In reply to Misha:
Just rereading my earlier thread re Irish climbing destinations, came across these very encouraging comments:
Even if you get iffy weather at Fairhead, by the way, it's not a bad damp-weather venue. If you stay away from the major corner lines (which can become waterfalls) the insides of the cracks can stay quite dry (depending on heaviness and wind direction, of course). The rock tends to dry fairly quickly if there's a breeze (and there usually is) and has good friction even when damp. I've climbed fifteen minutes after fairly heavy showers and been unable to notice appreciable dampness on the rock.
Of course it will be perfect weather for the next couple of weeks but just in case...