What does it mean that there are no three days in summer?

1, there are no three days in summer, that is to say, it is only three days in summer. The poem "Two Poems on the Yangtze River" written by Su Ling in Song Dynasty describes the physical feeling that the temperature gradually drops after the summer solstice solar term in most parts of China, especially in the north, which is a natural reaction of animals and insects and a natural law.

2. long summer is the 14th of the 24 solar terms. Dou Zhiwu (Southwest); The solar calendar is150; August 22-24 of the Gregorian calendar every year. Being in the heat is "out of the heat", that is, out of the heat. The arrival of the summer heat marks the end of the hot weather, and the summer heat gradually fades, from hot to cold. Due to the influence of short-term reheating weather (commonly known as "autumn tiger"), there is still a continuous high temperature after the summer heat, which is generally cool until after the Millennium.