The average temperature of the human body in Celsius is approximately 37 degrees. However, it can vary slightly among individuals and throughout the day due to various factors, such as physical activity, emotions, and the time of day. Normal body temperature can range from about 36.1°C to 37.2°C (97°F to 99°F). Body temperature is an important physiological indicator, and deviations from this range can signal health issues, making it vital for monitoring overall well-being.