青空広がる夏山日和。日中の気温差に注意

Today at Rusutsu, clear skies will prevail, offering a mild day. Near the summit of Isola, temperatures will rise to around 18 degrees Celsius during the day, with a wind-adjusted feel of approximately 15 degrees Celsius. Winds will be light, making conditions suitable for hiking and walking. The ground is generally dry, but in the forested areas of the tree run zones, fallen trees and roots are exposed, requiring careful attention to foot placement.

A significant temperature drop of up to 7 degrees Celsius is expected from evening through early morning. To prepare for a sudden chill during your activity, carry an extra layer of insulation, such as a light fleece or windproof shell. If you are active from the afternoon into the evening, make an early decision to turn back. While the risk of hypothermia is low during the day, vigilance is required during periods of inactivity or in the evening cold.

The risk of lightning is low, and maximum wind gusts will be around 7.5 meters per second, not reaching levels that would cause lift or gondola stoppages due to strong winds. However, even in summer, at an elevation of 990 meters, be mindful of body temperature drops when stationary. Equip yourself with a quick-drying base layer, an insulating mid-layer, and a windproof and waterproof shell as an outer layer. Crampons and chain spikes are not necessary. Always carry rain gear.