The normal oral temperature of a healthy adult in the morning is.
The normal oral temperature of an adult in the mornings is 36.3–37.1°C (97.3–98.8°F). Different parts of the body have slightly different temperatures. extremities are cooler. Core temperature measured by rectal temperature is 0.5°C higher than an oral temperature. Scrotal temperature is 32°C.
In females at ovulation body temperature increases.
During exercise, core temperature may reach up to 40°C.
Oral temperature is affected by hot and cold substance eating.
Core temperature undergoes circadian rhythm lowest in the morning i.e. 6 AM and highest in the evening.
In children, body temperature is 0.5°C above the adults.