Why does the weather get very hot after the sun goes down at noon?

The highest temperature of the day generally occurs around 2 p.m.

At 12 noon, the solar radiation is the strongest. The sunlight shines vertically on the ground, heating the ground. The heat absorbed by the ground is then released to heat the air, so it will take some time for the temperature to rise. .

It is not until two or three o'clock in the afternoon that the ground temperature rises to the highest level and the air temperature is also the highest. At this time, although the sun is tilted to the west, the altitude angle is still very large, and the heat stored on the surface is still greater than the heat released. , causing the temperature to continue to rise. When the surface heat budget balances, the surface temperature reaches a peak. After that, the heat released by the surface is greater than the heat stored, causing the surface temperature to decrease.

The hotness and coldness of the weather mainly depends on the temperature of the atmosphere, and the main factor affecting the temperature of the atmosphere is the heat given to the atmosphere by the sun. But direct sunlight is not the main cause of rising temperatures.

The air can only absorb about 14% of the heat from direct sunlight, while about 43% of the heat is absorbed by the ground. When the ground absorbs the sun's heat, it is then conducted to the air through radiation, convection, etc. This is the direct cause of the temperature rise.