Wicking moisture away from the body is still useful in colder climates like Tassie, as recommended by most cold-climate/alpine walking guides (eg, I just found
this one). It sure doesn't evaporate as quickly as in warmer climates, but it is important that when it does evaporate, it is away from the skin as much as possible. That way it doesn't extract warmth directly from the body as it evaporates.
So even though it may not evaporate quickly under a gortex jacket, at least it is removed away from the body to some degree.
In warmer climates, wicking moisture away from the body is not a problem as you actually want the sweat to evaporate directly from your skin, to cool it down as it was designed to do.
There are some newer synthetic fabrics that do a reasonable job at this, but wool is the best (cotton wicks OK, but as already mentioned by others, it does not keep you warm when it is wet).
As Tasadam says... pray for snow... it's more fun than rain, and of course you don't get as wet!