日本海からの霧雨 朝まで。昼から快晴へ

Mount Chokai summit is currently experiencing light drizzle with a perceived temperature of 11.7 degrees Celsius and visibility under 1 kilometer. The drizzle is expected to persist until around 9 AM, with perceived temperatures hovering around 9 degrees Celsius. High humidity at 99% increases the risk of hypothermia if clothing becomes wet. An outer shell with waterproof and breathable properties is essential at the start of your ascent to prevent getting soaked.

Ground conditions are wet due to the drizzle. Rocky sections will be slippery, requiring extreme caution, especially around the Shinsan volcanic dome. There is no snow cover, so crampons or microspikes are not necessary. The forecast predicts improving weather towards midday, with clear skies expected in the afternoon. Temperatures will rise to the mid-14s, but gusts of up to 16.2 m/s are anticipated to continue.

Strong winds from the Sea of Japan are a characteristic risk on Mount Chokai, and you may experience stronger winds than perceived, especially on exposed ridge sections along routes such as the Hokonodate Course or Yunodai Course. For insulation, carry a quick-drying base layer, a mid-layer like fleece or a light down jacket, and a waterproof-breathable outer shell. While the base of the mountain is a warm 23.7 degrees Celsius, the significant 11-degree temperature difference to the summit necessitates preparation for rapid temperature changes with altitude. Although the risk of lightning is low, remain vigilant for sudden visibility deterioration and strong winds even after the weather improves.