独立峰の風穏やか。高山病と寒さ用心

Mount Fuji summit this morning is mostly clear with a temperature of 3 degrees Celsius, feeling like 0.8 degrees Celsius. This is a significant drop from the base, with a temperature difference of 14.6 degrees Celsius. Winds are light at 0.32 m/s, but visibility is currently below 1 km. While some light cloud cover is expected at times today, generally clear conditions will prevail with gusts up to 6.5 m/s.

At an elevation of 3766.43m, even in summer, the summit area can feel near freezing. Appropriate cold weather gear is essential. We recommend a wicking base layer, a thick fleece or light down jacket as a mid-layer, and a waterproof-breathable shell as an outer layer. The steep volcanic scree slopes, such as those on the Yoshida Trail starting from the 5th station, are dry. However, rockfall is a constant hazard, so wearing a helmet is strongly advised.

While the risk of thunderstorms is low, Mount Fuji is an isolated peak prone to sudden weather changes. Despite today's calm wind forecast, exposed slopes above the tree line are always vulnerable to wind exposure. The low perceived temperature increases the risk of hypothermia during breaks, so take frequent short breaks and ensure proper layering. For altitude sickness prevention, maintain a slow pace and stay hydrated.

Clear conditions are expected to continue into the evening and night, but temperatures will drop further, reaching around 1 degree Celsius. Maintain strict cold weather precautions and move safely.