The average temperature of the human body in degrees Celsius is approximately 37 degrees. However, it can vary slightly between individuals and throughout the day due to factors such as activity level, time of day, and menstrual cycles in women. Normal body temperature ranges from about 36.1°C to 37.2°C (97°F to 99°F). A temperature significantly higher or lower than this range can indicate health issues, such as fever or hypothermia. The regulation of body temperature is critical for maintaining metabolic processes and overall bodily function.