By sunrise in the morning the desert has lost all the daytime heating from the previous day and the current day's heating has not yet begun. Therefore, the time just before sunrise is generally the coolest time of the day in the desert.
Deserts usually have very low humidity and little cloud cover. These two factors would normally hold in the daytime heating in other biomes. However, since they are lacking in the desert the heat stored during the day quickly radiates back into space once the sun sets.
in the some desert it gets cool faster because in some desert, the water always cools down the heat while there is no sun.
Some deserts (hot deserts) are often hot during the day and much cooler at night. There is little humidity or cloud cover to hold the daytime heating.
the night is so much colder than the day
Deserts generally have few clouds and little humidity. These two factors would normally insulate the land from heating so much during the day as well as prevent the heat from radiating back into space at night. Since deserts lack these factors they heat up quickly during the day and cool quickly at night.
There are hot deserts and there are cold deserts so it is not always hot in a desert. The Antarctic Desert stays below the freezing mark even in summer. Some deserts are hot during the day but get quite chilly at night.
Deserts are hot during the day, when the sun is shining. Once the sun goes down, then the temperature drops. This is because desert surfaces receive a little more than twice the solar radiation received by humid regions and lose almost twice as much heat at night.
It is generally much cooler at night and most prey animals only emerge in the relative safety of darkness.
Not necessarily. During the day, inland temperatures are usually much higher than they are near the coast, but at night, temperatures drop to colder temperatures inland, whilst seaside night time temperatures are milder.
No, deserts that are hot during the summer are much cooler in the winter, especially in cold winter deserts.
Rainforests have high humidity and usually are covered with clouds. These two factors act as a blanket and help hold in daytime heating so the rainforest does not cool much at night. Deserts, on the other hand, have few clouds and usually have a very low humidity. Once the sun sets, the heat of the day begins to radiate quickly back into space,
the main difference between a hot and cold desert is the animals
Not all deserts are hot. Some deserts are cold. Antarctica, for example, is technically mostly a desert. Deserts tend to have more extreme temperatures because they don't have much cloud cover. That means during the daytime, they get more sun, and at night, there's no cloud cover to reflect warmth back downward, so a lot of it escapes into space.
Only cold winter deserts have very cold winters. They are located in the temperate zone and receive less sunlight in the winter months so do not heat up much during the day. Subtropical deserts, on the other hand, are usually quite mild in the winter.