Armadillos have a regular body temperature of about 91.4 degrees Fahrenheit, much lower than the mammalian average of 98.6 degrees Fahrenheit. Armadillos are mainly nocturnal, and can be found spending most of their day hiding in their burrows, however they may also occasionally appear during the daylight and may be diurnal in cool weather, and nocturnal during the hottest days of summer.
Typically, armadillos are nocturnal and most active around dawn or dusk. It is not uncommon to see one around this time if you are near an area with lots of underbrush or with a good water source. Armadillos are attracted to these types of places because they forage and burrow here.
However there are certain species of armadillos that are diurnal, such as the six banded armadillo. This species can be found moving about in the daylight searching for food and feasting upon things such as plants, insects and carrion.