霧雨に濡れる岩場。足元注意で慎重な登高を

Mount Tsukuba's summit area continues to experience light drizzle, resulting in wet and muddy trail conditions throughout the day. The current temperature at the summit is 14.8 degrees Celsius, rising to the mid-16s during the day, but the 96% humidity makes it feel cooler. There is an approximately 4-degree Celsius temperature difference from the base, making the summit area noticeably colder.

The rocky sections, particularly along the Miyukigahara Course and Shirakumobashi Course, are exceptionally slippery due to the drizzle and the presence of unique rock formations. Loose stones also pose a hazard. Exercise extreme caution with every step to prevent falls, and consider using trekking poles for added stability.

The risk of thunderstorms is low, and winds are generally light. However, gusts could reach up to 9.1 meters per second around 3 PM, potentially causing temporary loss of balance. While the risk of hypothermia is low, avoid prolonged breaks if you are wet, as this can lead to a significant drop in body temperature. Overall, climbing is permissible with careful attention to these conditions.

Light drizzle is expected to persist into the evening, turning into light rain around 9 PM, with temperatures dropping to the low 13s. Visibility will decrease significantly after sunset, increasing the dangers on the trails. It is strongly recommended to conclude your activities early. For layering, wear a quick-drying base layer, a light fleece or softshell as a mid-layer, and always carry waterproof and breathable rain gear (jacket and pants). Crampons or microspikes are not necessary.