雲海テラスへ。湿度高く雨具は必携

This morning, Tomamu summit is cloudy with a temperature of 15.7 degrees Celsius. There is a temperature difference of about 4 degrees from the base, indicating a cool atmosphere at the summit, with a feels like temperature of 17 degrees Celsius. The day is expected to turn mostly sunny, with temperatures rising to around 20 degrees Celsius. Winds will be mild, with a maximum speed of 3.85 m/s and gusts up to 9.2 m/s, posing no significant hindrance to activities.

However, there is a possibility of light drizzle from noon to evening, and high humidity could lead to a drop in perceived temperature due to wetness. Special attention is advised around the Unkai Terrace, where exposure to wind is possible. Opt for a quick-drying base layer and carry a light fleece or a shell jacket. While access via gondola is easy, Tomamu's characteristic "extreme cold environment" means even in summer, cold weather precautions are essential.

Ground conditions are generally dry, though some areas may become wet with the afternoon's light drizzle. It is not enough precipitation to cause significant mud. Crampons and microspikes are not necessary, but rain gear is a mandatory item. While the risk of lightning and strong winds is low, prolonged rest while wet increases the risk of hypothermia, so avoid such situations.