新緑の筑波山。穏やかな日差しと乾燥した登山道

As of 7:45 AM, the perceived temperature near the summit of Mt. Tsukuba is 16.7℃. Temperatures are expected to rise during the day, exceeding 20℃ by noon. While the forecast indicates cloudy conditions in the afternoon, no precipitation is expected throughout the day, meaning trails will primarily be dry. A quick-drying base layer and a thin long-sleeved shirt as a mid-layer will suffice. Given the warmth during activity, frequent layering adjustments are crucial for temperature regulation. A windproof and waterproof shell is an essential piece of equipment.

Due to high humidity, particular caution is advised against slipping in shaded or recessed areas, especially along the 御幸ヶ原 (Miyukigahara) Course and 白雲橋 (Hakuunbashi) Course, which feature numerous unique rock formations (奇岩怪石, kigan-kaiseki). Even if rock surfaces appear dry, moss or dirt accumulation can make them slippery. Proceed carefully, paying close attention to your footing. With temperatures forecasted to exceed 20℃ in the afternoon and near-calm winds, the perceived temperature may feel even higher. Considering the risk of heatstroke in early summer, prioritize frequent hydration and regular breaks.

No significant warning values have been detected by the automated risk assessment system. While the risk of lightning is low, increasing chances of afternoon precipitation necessitate carrying rain gear to prepare for sudden weather changes. The risk of strong winds remains low throughout the day, with gusts reaching a maximum of approximately 7.7 m/s, posing no hindrance to ridge walking. Hypothermia risk is minimal, but be sure to have extra clothing to counter sweat-induced chilling.

Temperatures are expected to remain around 15℃ into the evening, maintaining mild conditions. If planning nighttime activities, prepare a headlamp and additional warm clothing.