 Considering its latitude of about 57 to 58 degrees north and the mountainous terrain, the climate is mild, moderated by the warming influence of the North Atlantic Drift which is a powerful warm western boundary current within the Atlantic Ocean that extends the Gulf Stream northeastward.At low elevations and near the coast the climate is maritime.The summers are mild and wet with average daytime highs under 17° C, or 62.6° F. The winters are cool at low elevation with average night-time lows below 0° C, or 32° F, but become colder and snowier inland and at higher elevations with the highest tops exhibiting a tundra climate.