Hiked on a rainy day. Not too bad. The rocks were slippery but it’s totally doable. In the beginning it’s windless in the thick woods and very humid, which made us very uncomfortable. It got better as we went higher. After we broke the tree-line, we found ourselves in very thick fog, the visibility dropped to 100 ft or even less at some point, plus it’s very windy and very cold around the sign! The wind blowed cold rain to my face. Thank god there are some stone-made shelters on the top. I can imagine how dangerous it could be if you get wet and exposed for more than half an hour.