曇天穏やかな山歩き。足元は湿度高く滑りやすい

Current conditions at Rusutsu Resort Isola summit this morning are cloudy with a temperature of 16.5°C, feeling like 18°C. Humidity is very high at 96%, making the air feel heavy. Winds are light at 0.86m/s. There is a 3.9°C temperature difference from the base, making the summit area feel cooler. Temperatures are expected to rise to around 20°C during the day, but cloudy weather will persist throughout. There is a low chance of rain.

Ground conditions are wet to muddy due to the high humidity. Especially in the tree run areas, which feature abundant forest routes, footing will be slippery. Caution is advised for slippery roots and potential fallen trees. Waterproof hiking boots are essential, and careful steps are recommended. Visibility at the Isola summit is limited to 2.1km, so extensive scenic views are not expected today.

For layering, a quick-drying base layer with a thin mid-layer is suitable. Carry a windproof and waterproof shell as an outer layer. To prevent hypothermia from sweat, manage your body temperature through frequent ventilation and layering adjustments. Wind speeds will remain low, with a maximum of 2.27m/s and gusts up to 6.3m/s, posing no significant strong wind risk. Lightning risk is also low, limiting the chance of hypothermia, but high humidity requires vigilance against sweat-induced chill.

Cloudy conditions will continue into the evening, with temperatures gradually dropping. If you plan to be active after sunset, be prepared with a headlamp and additional warm clothing.