火口付近はガスに注意。午後は気温低下。

Mount Meakan summit currently experiences cloudy conditions with a temperature of 6.3 degrees Celsius and a felt temperature of 3.4 degrees Celsius. Winds are light, but light drizzle is forecast for the afternoon. There is approximately a 5-degree Celsius temperature difference between the summit and the base. During the daytime activity hours, the felt temperature is expected to range from 1 to 5 degrees Celsius. Hikers should wear a wicking long-sleeve base layer, a mid-weight fleece as a mid-layer, and a waterproof-breathable hard-shell jacket and pants as an outer layer. A warm hat, gloves, and a neck warmer are also essential.

Despite minimal precipitation, the ground remains damp. On trails such as the Onneto Course, watch for muddy sections and loose scree where falls are a risk. Trekking poles will be beneficial. Near the crater lakes, Akanuma and Aonuma, and the fumarole groups, sulfur gas may accumulate depending on wind direction. Although wind speeds are low, promptly evacuate the area if you feel unwell. While the risk of lightning is low, temperatures will drop sharply towards evening, reaching below freezing felt temperatures around midnight.

The automated risk assessment indicates a rapid temperature drop of 7 degrees Celsius during the forecast period. Be prepared for sudden changes by carrying an extra insulating layer from the start and pay close attention to sweat-induced chilling. Make early decisions regarding continuing your activity and avoid pushing limits. Always carry a headlamp and aim to descend before sunset.