When does autumn begin?

August 7th to 9th in the solar calendar is the beginning of autumn. Beginning of autumn has arrived, but not in autumn. The division of climate seasons should be based on the "average climate temperature", that is, the average local temperature for five consecutive days is below 22℃, which is the real autumn. China is a vast country. Although the climate varies from place to place, most areas have not yet entered the autumn climate, especially in southern China, which is still midsummer. At the same time, with the gradual departure of the typhoon and rainy season, the temperature is even hotter.

Beginning of autumn is the 13 of the 24 solar terms and the first solar term in autumn, which marks the official start of the Qiu Meng season: "Autumn" means that summer is cool. In early autumn, Beidou points southwest. From this day on, autumn began, the autumn was crisp, the moon was bright and the wind was clear. Since then, the temperature has gradually decreased from the hottest time. ?

The first thing that "beginning of autumn" brings is the change of weather. From this day on, the sky was crisp, the moon was bright and the wind was clear, and the temperature gradually dropped. As the proverb goes, "It's cool in beginning of autumn" and "It's autumn in the morning and cold at night". Beginning of autumn is one of the "four seasons and eight festivals" in ancient times. People have the custom of offering sacrifices to the land gods and celebrating the harvest.