Celsius temperature, also known as centigrade, is a scale used to measure temperature. It is based on the freezing point of water at 0 degrees Celsius and the boiling point at 100 degrees Celsius under standard atmospheric conditions. This scale is widely used around the world, especially in scientific contexts. The Celsius scale is part of the metric system, which is used in most countries for everyday temperature measurements. It provides a straightforward way to understand temperature changes, making it easier to relate to weather forecasts and other temperature-related information.