伊吹山 曇り空に湿度高まる。夜間は雨

Ibukiyama summit is currently cloudy with a temperature of 12.8°C, feeling like 12.5°C. Humidity is high at 90%, and while the wind is gentle, be aware of gusts. There is a 7.7°C temperature difference between the summit and the base, so prepare for varying conditions during your ascent. Cloudy conditions are expected to persist throughout the day, with temperatures gradually rising to 15.5°C by 3 PM. Visibility is 5.8km, but the high humidity and upcoming rain forecast suggest a high probability of fog, which could significantly reduce visibility. Particular caution is advised on the summit and upper sections of the Omote Tozan-do Trail from Ueno Trailhead, where fog can easily lead to disorientation.

Considering the current feels-like temperature, a quick-drying base layer, a light fleece or synthetic mid-layer, and a waterproof-breathable shell as an outer layer are essential. For much of the day, a mid-layer might suffice. The ground is likely to be wet due to high humidity, and the rising daytime temperatures, combined with the upcoming rain, increase the risk of muddy sections. The limestone terrain of Ibukiyama becomes particularly slippery when wet, requiring careful foot placement. The direct ascent via the Omote Tozan-do Trail from Ueno Trailhead can be physically demanding, especially with high humidity. Regular hydration and breaks are crucial to prevent exhaustion.

The risk of thunderstorms is low, but vigilance for sudden weather changes is always necessary in summer mountains. Gusts are expected to reach around 10m/s during the day and up to 11m/s at night, which is not prohibitive but can lower the perceived temperature and affect balance. The forecast indicates light rain starting at 9 PM, turning to moderate rain by midnight, and heavy rain (16mm) by 3 AM. Nighttime activity is not recommended. It is strongly advised to complete your descent during daylight hours. Always carry full rain gear and extra dry clothing to mitigate the risk of hypothermia if caught in the rain.