沢渡渉は穏やか。日高の原生林を静かに歩く一日

Based on today's conditions, Mount Poroshiri will experience cloudy weather throughout the day, with summit temperatures ranging from 9 to 11 degrees Celsius. The perceived temperature will be around 6.5 to 11 degrees Celsius, and winds will remain gentle, with gusts peaking at 6.7 meters per second. No precipitation is expected, making for a generally stable climbing day. A fast-drying base layer, a fleece mid-layer, and a windproof softshell as an outer layer are appropriate. Be prepared to adjust layers frequently to manage body temperature during activity.

Ground conditions will vary from dry to wet. For the Nuka-biragawa Course, with its more than 20 river crossings, there is no immediate concern for rapid water level increases due to the lack of recent precipitation. However, getting wet is unavoidable. To mitigate the risk of hypothermia from wet clothing, carry waterproof gear and quick-drying changes of clothes. River shoes or specialized trekking sandals are recommended for the crossings. Crampons or microspikes are not needed.

The risk of lightning and strong winds is low. Visibility is excellent, offering expansive views of the Hidaka Mountains. However, the deep forests of Hidaka are known bear habitats. It is essential to carry a bear bell or whistle, and bear spray, and to move in groups. Towards evening, the sky will clear, and temperatures will drop to around 5 degrees Celsius. If staying at Poroshiri Hut, ensure you have sufficient warm clothing for the night.