奇岩怪石の道 午後から雨で滑りやすい

The current summit condition is cloudy with a temperature of 13.7 degrees Celsius, a feels-like temperature of 13.9 degrees Celsius, and 99% humidity. While the wind is light, this high humidity will persist throughout the morning and afternoon. Light drizzle is expected around 3 PM, transitioning to full rain by evening. For those planning to hike today, wear a quick-drying base layer, carry an insulating mid-layer such as fleece, and a waterproof-breathable outer shell is essential.

Ground conditions are likely already wet due to high humidity, and will become increasingly wet and muddy with the afternoon rain. Especially the rocky sections leading to Mt. Nyotai summit from Miyukigahara Course and the unique rock formations along Shirakumobashi Course will be very slippery. Crampons or microspikes are not necessary, but waterproof trekking shoes and a full set of rain gear are mandatory. Exercise extreme caution against slips on wet rocks and maintain careful footing.

While the risk of thunderstorms is low, hypothermia due to getting wet is a concern. Daytime temperatures range from 14 to 16 degrees Celsius, but rain and wind will significantly lower the felt temperature. It is crucial to wear rain gear promptly to stay dry. It is advisable to plan your activity to conclude in the early morning. Heavy rain is expected at night, with gusts reaching 12.8 m/s by 3 AM on the 21st, so night hiking should be avoided.