How do deserts stay warm at night?

Answer 1

Deserts cool off quickly after the sun sets. They are generally quite cool at night,, even in the summer. If there happened to be a thick cloud cover at night, this would hold the heat and the desert would be warmer at night.

Answer 2

In hot deserts, such as the Sahara desert, there may be a high diurnal temperature amplitude between day and night, usually around 20 °C : it can be 40 °C in the day while the nighttime temperature could drop at 20 °C easily. The higher diurnal temperature amplitude in the hot deserts are caused by the excessively dry air and cloudless skies. During the day, the Sun heats up the ground and the atmosphere with his rays. During the night, after the sunset, the Earth sends back the accumuled heat in the day to the atmosphere by emitting an infrared radiance, which cools off the ground and the air. But at the night the cloud cover and the humidity contained within he air holds the heat accumulated during the daytime, which reduces the diurnal temperature amplitude but in the hot deserts where cloud cover is extremely rare and the relative humidity is exceptionnally low mean it won't hold the heat of the Sun which cause larger dirunal temperature amplitude.

Answer 3

False