利尻山快晴広がる穏やかな一日

Rishiri-zan summit is partly cloudy with a felt temperature of 8 degrees Celsius. Throughout the day, clear skies are expected, with temperatures rising to around 13 degrees Celsius. Winds will shift from south-southwest to northeast and gradually calm down by the afternoon. The felt temperature during activity will range from 7 to 10 degrees Celsius. Carry a base layer, a mid-layer such as fleece, and a windproof outer shell.

With no precipitation or snow cover, the main climbing routes will remain dry. However, the fragile volcanic scree above the 9th station is exposed near the summit, making footing unstable in places. Particular caution is advised against falls during descent. Crampons or microspikes are not necessary. It is recommended to carry rain gear as a precaution.

As indicated by the automated risk assessment, a significant temperature drop of 11 degrees Celsius is expected during the forecast period. While daytime activity will be relatively mild, temperatures will fall to around 7 degrees Celsius in the evening and further to 0.6 degrees Celsius by early morning tomorrow. If your activity extends until sunset or beyond, prepare an extra layer of warm clothing and always carry a headlamp.

The risk of thunderstorms is low, and strong winds will subside by the afternoon, making it a suitable day for climbing. However, prolonged stops or extended activity can increase the risk of hypothermia, so proceed with a thorough plan and adequate gear.