The cold weather and potential for heavy snowfall in Auli during December and January can pose challenges for travellers. Night temperatures often drop below 0°C, making warm clothing essential. Road closures due to snow or landslides are possible, particularly in January when snowfall is at its peak. Visitors should be prepared for delays and ensure they have a flexible travel schedule. Additionally, the festive season in late December can lead to crowded accommodations and higher prices, so early bookings are recommended. Those planning to ski or engage in snow activities should follow safety guidelines and avoid unmarked areas.