山頂視界不良継続。午後霧雨で体感氷点下に

Current conditions on Mount Fuji summit show cloudy skies with visibility less than 1km. The temperature is 0.3°C, feeling like -2.7°C. There is a significant temperature difference of nearly 15°C between the summit and the base.
While there will be periods of partly cloudy skies during the day, light drizzle is expected from around 3 PM. Although precipitation will be minimal, getting wet can further lower the perceived temperature. Especially on the exposed slopes above the tree line, where there is no shelter, body heat can be rapidly lost, increasing the risk of hypothermia. Waterproof and breathable outerwear, along with insulating layers like fleece or light down, are essential. Gloves and a warm hat are also necessary.
The ground is free of snow, with steep volcanic scree slopes. The afternoon drizzle will moisten the ground, potentially making some sections slippery. Temperatures will drop below freezing overnight, so consider the possibility of wet rocks and volcanic gravel freezing. Crampons are not required, but chain spikes could be useful for those planning night climbs or early morning starts.
Winds will remain light throughout the day, but persistent low visibility means extra caution is needed to stay on route, even on wide trails like the Yoshida or Fujinomiya routes. As Japan's highest independent peak, be prepared for sudden weather changes and plan your ascent accordingly.