日中は冷涼な曇り。夕方から霧雨で沢は濡れる

Mount Poroshiri experiences cool, cloudy conditions today. The summit temperature is 2.8℃, with a feels-like temperature of minus 1.9℃ due to wind. While temperatures will gradually rise to a maximum of 6.3℃ by afternoon, gusts of up to 12.3m/s will keep the feels-like temperature below freezing throughout the day. Layering is crucial: wear a quick-drying base layer, a fleece or light down mid-layer, and a waterproof-breathable shell.

There is no snow cover at the summit, revealing rocky terrain. However, the Ekihira River course, known for over 20 stream crossings, presents a risk of hypothermia due to low water temperatures. Starting around 6 PM, light drizzle is expected, continuing through the night with 100% precipitation probability. This will make the ground and rocks slippery, increasing the risk of falls during stream crossings. As this is a dense bear habitat, take necessary precautions such as making noise. While no significant alerts are in effect, the evening drizzle and falling temperatures elevate the risk of hypothermia if wet. It is advisable to conclude your outdoor activities early today.