霧雨と低温の一日。濡れた八丁坂は慎重に

Kiso Komagatake summit is experiencing light rain with a temperature of 5.4℃ and a perceived temperature of 3.9℃. Light rain is expected to continue throughout the day, with temperatures hovering around 6℃. Humidity is at 98% and visibility is 3km. Despite weak winds, the combination of wet conditions and low temperatures significantly increases the risk of hypothermia. A quick-drying base layer, a fleece or light down mid-layer, and a waterproof-breathable outer shell are essential. Waterproof gloves are also highly recommended.

The ground is thoroughly wet due to the continuous mist. Steep sections like Hacchozaka will be slippery with wet rocks and soil. Extreme caution is advised, especially during descent, maintaining three points of contact. The rocky ridges of Hokendake present heightened fall risks due to limited visibility and slick surfaces. Unless highly experienced, avoid venturing onto Hokendake. Waterproof hiking boots are mandatory given the muddy sections.

Light rain is forecast to persist until around 3 PM, after which precipitation will cease, transitioning to partly cloudy then mostly clear skies overnight. However, nighttime temperatures will drop to around 4℃, necessitating additional warm layers if your activity extends into the evening. While gusts are minor at a maximum of 7.3m/s, the primary concern today is the elevated risk of hypothermia from prolonged exposure to wet and cold conditions.