剣ヶ峰は快晴微風 視界良好の登山日和

The summit of Mount Ontake is experiencing clear skies with visibility exceeding 20 kilometers, offering superb views towards the Northern Alps. Winds are light, ensuring a comfortable ascent to Kengamine. The white volcanic scree slopes above the treeline are well-dried, allowing for stable walking, though caution is advised on slippery sections. Conditions are suitable for daytime activity.

The perceived temperature at the summit will range from the upper 10s Celsius in the morning, rising to around 14 degrees Celsius by noon. While a base layer, light mid-layer, and wind shell will suffice during active periods, a 6 degree Celsius temperature drop is expected over the forecast period. Therefore, carry an extra insulating mid-layer, such as a fleece, to prepare for temperature changes during breaks or at higher altitudes.

The probability of precipitation increases to 53% around 3 PM. Always carry rain gear for sudden showers. Although winds remain mild, constantly be aware of the 9 degree Celsius temperature difference between the summit and the base, and manage your physical condition accordingly. Mount Ontake is an active volcano, and based on the lessons from the 2014 eruption, carrying a helmet is strongly recommended. Always pay close attention to your surroundings and make a prompt decision to descend if you notice any unusual activity. Overnight into early morning, temperatures will drop to the mid-6s Celsius, necessitating adequate cold weather gear if you plan to stay on the mountain.