午後から霧雨。濡れた八丁坂は滑落に注意

Kiso Komagatake starts cloudy this morning but expects light rain from around 3 PM, transitioning to steady rain by evening. Summit conditions show a real feel temperature of 1 to 5 degrees Celsius throughout the day, coupled with high humidity exceeding 90%. Getting wet will significantly lower the perceived temperature. There's an 8-degree Celsius difference between the summit and the base, indicating distinct seasonal conditions at higher elevations.

With no snow cover and above-freezing temperatures, the ground will become universally wet and muddy due to afternoon precipitation. Steep sections like Hachochosaka, leading from Senjojiki Cirque to the summit, will be particularly slippery with wet rocks and soil. Extreme caution is advised, especially during descent, focusing on careful foot placement and three-point contact. Ascending rocky ridges such as those on Hokendake will also be more challenging with wet, less grippy surfaces.

Essential gear includes moisture-wicking base layers, fleece mid-layers, and waterproof-breathable shell jackets and pants for insulation and rain protection. Waterproof gloves and a hat are also crucial. Crampons or microspikes are not necessary. Despite light winds, the combination of rain and low temperatures elevates the risk of hypothermia. Maintain hydration and energy levels consistently and avoid pushing limits.