The end of summer solar term means that the hot summer is about to pass.

Sushu is the fourteenth solar term of the twenty-four solar terms and the second solar term in autumn. Dou Zhi Wu (southwest); the sun's yellow longitude reaches 150°; the festival is held on August 22-24 of the Gregorian calendar every year. It's the end of the summer heat, and the "last heat" of the "three heats" of high-temperature and scorching weather has arrived, which means that the hot and unbearable weather has come to an end. Chushu means "out of heat", and Chu means the end, indicating that the heat is about to pass and the summer heat will end.

After the end of summer, the direct sun point continues to move southward, solar radiation weakens, and the subtropical high pressure also retreats southward, and the heat gradually subsides. Thunderstorm activity is also less active than in hot summer, and the general trend of heavy rains across the country has weakened. There are many folk activities during summer heat, such as eating ducks, setting off river lanterns, holding a fishing festival, making herbal tea, worshiping the Earth God, etc.

Farming activities during the summer heat

It is the busy season for harvesting mid-season rice in most parts of southern China. Generally speaking, during the summer season, South China still has plenty of sunshine. Except for the western part of South China, there are not many rainy days, which is conducive to mid-season rice harvesting and cotton wadding. During the summer season, fruits and crops in most parts of China are gradually entering the maturity stage. Farmers are stepping up picking, seizing the farming season, and conducting field management such as rice fertilization and weeding.

“The valleys gradually turn yellow during the summer heat, so beware of strong winds.” After the summer heat, the temperature difference between day and night increases. Because the nights are cold and the days are warm, the nutrients absorbed by the crops during the day are stored at night, so the crops mature quickly. "The fields change continuously during the extreme heat," "there is no grain for three days during the extreme heat," "the rice is pregnant for three days during the extreme heat," "the fields are full of yellow during the extreme heat, and every family builds barns," etc., all indicate that after the extreme heat, crops will be harvested soon.

Reference for the above content: Baidu Encyclopedia - End of Heat