-10 degrees Celsius is a temperature that is below the freezing point of water, which is 0 degrees Celsius. At this temperature, water turns into ice, and snow can form in the atmosphere. It is commonly experienced in winter months in many regions, especially in places like Canada and Scandinavia. At -10 degrees Celsius, outdoor activities may require special clothing to stay warm, such as insulated jackets, gloves, and hats. This temperature can also affect everyday life, as vehicles may struggle to start, and surfaces can become icy, leading to potential hazards for pedestrians and drivers.