What is the standard temperature at sea level?

The standard temperature at sea level is defined as 15 degrees Celsius or 59 degrees Fahrenheit. This baseline is used in various scientific and aviation contexts, including atmospheric studies and performance calculations for aircraft. Understanding this standard is crucial for dispatchers, as it provides a reference point when calculating aircraft performance metrics, fuel requirements, and other operational factors that are influenced by temperature and altitude.

The other temperature options do not represent the standard sea level temperature. For example, 10 degrees Celsius corresponds to a cooler environment that would yield different aircraft performance outcomes, while 20 degrees Celsius and 25 degrees Celsius indicate warmer conditions that similarly lead to performance variations. Having the correct standard temperature is essential for accurate data analysis and decision-making in aviation operations.