Air temperature refers to the measure of how hot or cold the air is, typically expressed in degrees Celsius (°C) or Fahrenheit (°F). It is influenced by various factors, including the time of day, season, and geographical location. Air temperature plays a crucial role in weather patterns and can affect human comfort, agriculture, and ecosystems. Meteorologists use instruments like thermometers to measure air temperature accurately. Changes in air temperature can indicate shifts in weather conditions, such as the approach of a cold front or heat wave. Understanding air temperature helps in predicting weather and preparing for different environmental conditions.