Why is the summer solstice not hot?

During the winter solstice, the sun shines directly on the Tropic of Capricorn, the earth is at perihelion, extreme daylight appears in the southern Antarctic circle, and the northern hemisphere is in winter.

During the summer solstice, the sun shines directly on the Tropic of Cancer, the earth is at apohelion, the northern hemisphere is in summer, and the northern Arctic Circle is in extreme daylight.

The summer solstice is the culmination of the sun's northward movement. On this day, the sun shines directly on the Tropic of Cancer, and then the point of direct sunlight moves south. On the day of summer solstice, the height of the noon sun is the highest in all parts of the northern hemisphere north of the Tropic of Cancer, and the daytime reaches the longest in a year. After the summer solstice, the height of the sun decreases day by day. However, for places south of the Tropic of Cancer in the northern hemisphere, sunshine is still increasing after the summer solstice.

The solstice in winter is the extreme point of direct sunlight spreading to the south. From winter to the sun, the sun shines directly on the tropic of Capricorn, and the sun is most inclined to the northern hemisphere, and the elevation angle of the sun is the smallest. In all parts of the northern hemisphere, the days are the shortest and the nights are the longest.

The solstice in winter is also a turning point for the sun to return directly to the north. After this day, it will go back, the direct point of the sun will move northward from the tropic of Capricorn, and the daytime in the northern hemisphere (China is located in the northern hemisphere) will increase day by day.

Extended data:

The summer solstice means that the hot weather officially begins and then gets hotter and hotter, so there is a folk saying that the summer solstice is not too hot. From summer to the future, although the direct point of the sun gradually moves southward, the days in most parts of the northern hemisphere are shorter and the nights are longer, but the heat radiated by the sun to the ground is still more than the heat radiated from the ground to the air, so the temperature will continue to rise in the future. ?

During the summer solstice, the temperature is high, the sunshine is abundant, the crops grow rapidly and the water demand is high in most parts of China. At this time, precipitation has a great influence on agricultural output. During the solar term from summer to solar term, it is the rainy season in the south of China, and there is plenty of precipitation in the south. Late July to early August is the rainy season at the turn of summer and autumn in the north, and there is less precipitation from summer to Sunday in the north.