As the saying goes, "early autumn is cool, early autumn is hot at night": When will beginning of autumn be this year? sooner or later

As the old saying goes, it is cool in early autumn and hot in late autumn. When will beginning of autumn be this year? Autumn usually begins between August 7 and August 8.

Knowledge expansion:

1. solar terms and lunar calendar

Solar term is an important concept in China traditional culture. It is a symbolic moment for the ancients to divide the four seasons according to the orbit of the sun and the position of the earth. Beginning of autumn is one of the important solar terms, which marks the end of summer and the beginning of autumn.

2. Lunar calendar and solar calendar

The traditional solar terms in China are calculated according to the lunar calendar, while the Gregorian calendar is widely used in modern society. There is a time difference between the lunar calendar and the Gregorian calendar, so the annual solar term date is not fixed and will fluctuate up and down on the Gregorian calendar date.

3. The beginning of autumn floating time

The time of early autumn is slightly different every year. Because the length of lunar month is different from that of solar month, and leap month exists every year, the date in beginning of autumn fluctuates. It is usually between August 7 and August 9 of the Gregorian calendar, but it may be earlier or later.

4. Other factors

Besides the lunar and solar calendars, the time in beginning of autumn is also influenced by the climate and geographical location. Due to the rotation and revolution of the earth, the sunshine time and temperature changes in different regions may be different, thus affecting the perception of beginning of autumn.

5. Climatic characteristics of beginning of autumn.

After beginning of autumn, the temperature gradually dropped and the weather began to get cold. The autumn wind blows gently, it is cool in the morning and evening, and warm and pleasant during the day. This is the characteristic of autumn, and it is also the period when everything begins to enter a dormant state.

6. Customs and culture

Beginning of autumn is an important traditional solar term in China, and people will hold some celebrations and folk activities at this time. For example, eat some foods related to autumn, such as okra, persimmon and chestnut. In some places, there are traditional customs such as welcoming the autumn to worship ancestors and praying for a bumper harvest.

7. vernal equinox and first frost

After beginning of autumn, autumn will further develop, followed by the autumnal equinox and the first frost solar terms. The autumnal equinox is the midpoint of autumn, which marks the equal division of day and night, with shorter days and longer nights. The first frost marks that the temperature continues to drop and frost begins to appear.