I love in portland, OR and winters here are fairly mildish...still 30 or so degrees, but mild considering some parts. I've "read" that it can be around that, or even warmer, like 40's? Is it going to be a freezing hellish nightmare? Mind you, I don't like cold weather and don't enjoy tramping around in it for long periods of time. This is my friend's trip, her idea, so not mine before you ask why am I going. She wants to walk to the majority of "sites" in Dublin. I'm agreeable to walking, just not if I'm going to have to bundle up heavily to do it.