稜線は冷涼。八丁坂の濡れた岩場に注意

Mount Kisokoma summit is experiencing a cool, partly cloudy morning with a temperature of 3.6℃ and a perceived temperature of 1.4℃. A significant temperature difference of 8.5℃ exists between the summit and base. Throughout the day, conditions will remain partly cloudy to cloudy, with the highest temperature reaching around 6.7℃ by 3 PM, though the perceived temperature could drop to near 0℃. While no precipitation is forecast for the day, high humidity suggests overall wet rock conditions across the exposed ridges.

There is no snow cover, and major routes, including Haccho-zaka, are exposed rock. Wet rocks are slippery, requiring extreme caution on the steep slopes of Haccho-zaka to prevent falls. Similarly, the rocky sections of Mt. Hoken demand careful passage. Gusts are predicted to reach up to 7.8 m/s in the afternoon, which is not strong enough to impede movement significantly but will feel stronger on the exposed ridges. The risk of thunderstorms is low.

The risk of hypothermia persists throughout the day. At altitudes around 3000m, temperatures in the 3℃ range combined with wind can rapidly lead to heat loss. Wear a quick-drying base layer and a mid-layer like fleece while active. For breaks, carry a lightweight down jacket for insulation and a waterproof-breathable shell jacket. Gloves and a hat are also essential.

Temperatures will drop to around 3℃ overnight, with light drizzle expected by 3 AM on the 25th. Adequate cold weather gear and rainwear are crucial, even for day trips. While ascent is feasible, remain vigilant to changing weather and physical condition, avoiding any overexertion.