why it's so cold on the deserts in the night time?

Answer 1

Deserts are characterized by lack of vegetation. Beacuse of this the temperature falls down rapidly as there is nothing to retain the temperature.
Rock/Sand tend to heat up very fast and cool down very rapidly. Due to this deserts become hot very fast in morning and cool down rapidly in evening.
Lack of vegetation helps the winds to blow faster without any hindrances and this further brings down the temperatures.

Answer 2

Because the dry air does not retain heat and thus it gets cool quick once the sun sets.

Also, since there no water and little if any plants around, a desert will not retain any humidity nor heat on the ground that you would get on land covered with trees, crops, plants and or urban areas with concrete and other activity retaining heat.

This is why you see bigger temperature swings between day and night in the desert vs. a non desert location.

Answer 3

I can see most answerers have never spent much time in the desert. 99% of the reason the desert is so cold is directly related to humidity. The air in the desert is extremely dry, therefore there is nothing to retain heat of day except rock and soil. These release heat fairly rapidly compared to water, so as soon as the sun sets, things begin to cool off. Contrary to previous comments in the American deserts there is qyuite a bit of vegetation and soil. Plants have adapted to the dry conditions and many will have thick, waxy skins to prevent loss of water - transpiration.

Answer 4

Aside from the other mentioned factors (water, vegetation, etc...), a big part of it is that there is no soil in deserts. Soil holds heat and cold very well, due to it's moisture and compact state. Sand is more of a porous surface, and the heat escapes quickly. Also, sand and rock shed heat very well. The effect of soil on temperature can be seen in winter with bridges. A road on soil may stay clear, but a bridge is more likely to freeze over, not only because of the wind on the top and bottom, but because it is not in contact with the soil which holds a lot of heat.

Answer 5

inspect the Gobi wasteland. countless the fave days and the most freezing temps at evening. common iciness temps there can get all the way down to -40 C. it really is butt chilly! that is a common characteristic of deserts; warm days, icy nights. Even demise Valley in California has wildly various temperatures, day vs evening. "On July 10 1913, demise Valley reached 134°F (fifty six.7°C), and this held the record for the optimal measured temperature on earth....In 1913, an similar 3 hundred and sixty 5 days which talked concerning the fave day, the temperature reached a record low of 15°F (-9°C)."

Answer 6

The specific heat of sand is very low. So, it is readily heated or cooled. That is why it becomes very hot during day time. During night, it looses heat quickly and so it is cold during night.
Land and sea breeze also take place due to similar reasons. The specific heat of soil is lesser than water and so during day time land becomes hot and air rises. To make up for this air cold air from sea rushes as sea water does not heat up so fast. The reverse takes place in night.

Answer 7

because during the day, the sand absorbs a lot of heat from the sum. At night, the sand radiates this absorbed heat back to the atmosphere

Answer 8

water holds heat, there is not much water in the desert, thus it is cold in the desert.

Answer 9

This is because you make them earlier in the day and it loses heat through out the day. Sorry, I was describing desserts and not deserts!

Answer 10

that kind of place need somthing to hole water and the dry air don't help with the heat