What is the standard SI unit for temperature?

The standard SI unit for temperature is Kelvin (K) because it is a unit based on the absolute scale of temperature. Unlike Celsius or Fahrenheit, which are based on arbitrary reference points (such as the freezing and boiling points of water), Kelvin is defined in relation to the fundamental properties of matter. The Kelvin scale starts from absolute zero, the lowest possible temperature where all molecular motion ceases. This makes Kelvin an ideal unit for scientific measurements and calculations, as it allows for precise comparisons and avoids negative values.