Normal temp for a 8 year old?

Depends on how taken: A normal temperature for an 8 year old is the same as an adult: 98.6 degrees, fahrenheit if taken orally. An axillary temperature (under the arm) tends to be 0.5 degrees lower, while a rectal temperature is 0.5 degrees higher and a tympanic (ear) temperature can be 0.5-1 degree higher. I find that tympanic thermometers are not as accurate, especially if the ear drum is hot from an ear infection.