午前中は安定。午後は岩場が湿り、滑落に警戒

Mount Tsurugi summit is mostly clear at 7:15 AM, with a temperature of 8.9 degrees Celsius and a felt temperature of 7.1 degrees. Wind speed is 2.2 meters per second with gusts up to 8.3 meters per second. Visibility is excellent, but humidity is high at 90 percent. A temperature difference of 5.6 degrees exists between the summit and base, warranting caution for cooling on the ridges.

Rock conditions will be relatively dry through the morning. Routes like the separate mountain ridge and Hayatsuki ridge with their chain sections should be passable. However, after 12:00 PM, the probability of precipitation rises to 41 percent, reaching 65 percent by 3:00 PM. Although no rainfall is forecast, the high humidity will progressively make rock surfaces wet. This increases the risk of slipping and falling, particularly on exposed, narrow ridge sections like Kani-no-Tatebai and Yoko-bai. Helmets are mandatory.

The felt temperature during activity will range from 8 to 11 degrees Celsius, but body heat can be lost quickly when stationary or exposed to wind. A quick-drying base layer, a fleece mid-layer, and a windproof, waterproof shell are essential, with additional insulation for stops. An early start and descent by midday are strongly recommended to avoid afternoon weather deterioration.

Conditions will transition to partly cloudy to cloudy in the evening, with a gradual temperature drop. Maintain adequate cold weather protection through the night.