山頂は穏やか。行動後の冷え込みに備えよ

As of 7 AM, Sapporo Kokusai Ski Resort summit reports partly cloudy skies with a temperature of 15°C. A temperature difference of approximately 3°C exists between the summit and the base, characteristic of this mountain area. Throughout the day, conditions will remain mostly sunny to partly cloudy, with the summit temperature expected to reach 19.9°C by noon. Winds will be gentle from the south, with gusts not exceeding 9.3 m/s, posing no hindrance to activities. With no precipitation, the ground will remain dry, and muddy conditions are unlikely.

For daytime activities, a base layer and a thin mid-layer should suffice. However, always carry a light windproof outer layer to account for potential drops in perceived temperature during breaks or at higher elevations. Even when utilizing the Sapporo Kokusai Ski Resort's longest 3,600m long-run course for summer hiking, do not underestimate the mountain environment due to its urban proximity. Ensure you have adequate gear to cope with summit weather changes. Crampons or microspikes are not necessary.

As indicated by the automated risk assessment, a rapid temperature drop of over 9°C is expected during the forecast period. Temperatures will fall sharply from evening, reaching as low as 10°C by early morning. To prevent hypothermia and post-activity chills, carry an extra insulating layer such as a fleece or light down jacket from the outset. Implement prompt layering adjustments to regulate body temperature. Always be prepared to turn back early if conditions warrant. The risk of lightning is extremely low.