初夏のイゾラ山頂穏やか。夜間の冷え込みに備えよ

Current conditions at Rusutsu Isola summit (990m) are cloudy with a temperature of 6.9°C, feeling like 5°C. The base (463m) is 10.9°C. Temperatures at the summit will remain around 11°C during the daytime, with similar readings at the base. Winds will be light from the SSW to S, with gusts up to 7.9m/s, ensuring calm conditions and excellent visibility exceeding 20km.

There is no snow cover. Ground conditions are expected to range from dry to wet, with some muddy sections, particularly in the tree run areas where fallen trees and soft ground require careful navigation. Appropriate footwear includes light hiking boots. Waterproof rain gear is essential.

Daytime effective temperature will be around 10°C, requiring a quick-drying base layer, a light fleece or synthetic jacket as a mid-layer, and a windproof shell. However, a significant temperature drop of 8°C is forecast. Temperatures will fall to 3°C by night and 2.6°C by early morning. Carry an extra insulating layer for warmth, and plan to conclude any activities before nightfall to avoid hypothermia risks.

Thunderstorm risk is low due to zero precipitation. Strong winds causing lift closures are unlikely. While hypothermia risk is low during the day, it increases significantly overnight. Plan your return accordingly.