岩稜はドライだが低温。行動は慎重に。

Mt. Tsurugi's summit is partly cloudy with a perceived temperature near freezing. There is a roughly 5.6°C temperature difference from the base. The forecast indicates mostly clear skies through the day, with temperatures ranging from 3°C to 4°C. Winds will remain light, offering favorable climbing conditions.

Current ground conditions are dry, with no snow or precipitation, meaning rock ridges are exposed and dry. Iconic sections like Kani-no-Tatebai, Kani-no-Yokobai, and the chains on Betsuzan and Hayatsuki Ridges are dry, but rocks will be cold in the early morning. The risk of rockfall, which is among Japan's highest, is constant. A helmet is mandatory, and maintain appropriate distance from climbers ahead.

Perceived temperatures will remain low, around 0°C to 4°C during the day. A wicking base layer, an insulating mid-layer, and a windproof/waterproof outer layer are essential. For breaks or periods of inactivity, an additional insulating layer like a down jacket is recommended.

While the risk of thunderstorms and strong winds is low, there is a 40% chance of precipitation in the afternoon. Always carry rain gear to prevent hypothermia from getting wet. Temperatures will drop to around 0°C after sunset, so ensure adequate cold weather protection if your activities extend into the evening.