筑波山 湿度高く岩場は注意。行動しやすい一日

Tsukuba Summit currently reports a mild 19°C with a comfortable perceived temperature of 21.3°C this morning. Forecasts indicate a rise to 23.6°C by 3 PM. While no precipitation is expected, the humidity is very high at 93%. This high humidity will keep rock surfaces damp and potentially slippery, especially on rocky sections found along the Miyukigahara Course and Shirakumobashi Course, which feature numerous unique rock formations. Particular caution is advised on these sections, especially in the morning when dew may further wet the surfaces.

Current wind speeds at the summit are a gentle 1.06m/s, with gusts not exceeding 6.1m/s by 3 PM, posing no significant challenge to movement. Although the risk of hypothermia is low, the high humidity can lead to increased perspiration, making it easy for the body to cool down during breaks. It is recommended to wear a moisture-wicking base layer and carry a light fleece or shell jacket for layering to regulate body temperature effectively.

The afternoon is expected to transition to "mostly clear," with conditions becoming partly cloudy to clear overnight. Winds will remain calm, and temperatures will stay between 18°C and 20°C, indicating stable conditions. Overall, it is a suitable day for hiking, but remain vigilant about the unique risk of slipping on Tsukuba's characteristic rocky terrain.