Why is the solar term forecast in China so accurate?

Because China's ancient society attached importance to agriculture and restrained commerce, and was in the period of agricultural civilization, the whole country paid more attention to agricultural harvest, so rulers and people of all dynasties paid more attention to the change of weather.

The solar terms formulated by the ancients in China and the solar calendar used now are the same principle, which can also be regarded as a kind of coupling. Therefore, the dates of the solar terms and the solar calendar we are using now will generally not be staggered, at most one or two days before and after.

The twenty-four solar terms of the lunar calendar are supplementary calendars formulated by China to guide farming in ancient times, and they are the crystallization of the long-term experience and wisdom of the working people of the ancient Han nationality.

Beginning of spring, Spring Equinox, Long Summer, Summer Solstice, beginning of autumn, Autumn Equinox, beginning of winter and Winter Solstice are eight solar terms, indicating the change from cold to summer.

The five solar terms of slight summer heat, great summer heat, intense summer heat, slight cold and severe cold are the symbols of temperature change.

Rain, Grain Rain, White Dew, Cold Dew, First Frost, Light Snow and Heavy Snow are the seven solar terms reflecting precipitation.

The four solar terms, namely, startled sting, Qingming, Xiaoman and Mangzhong, are the projections of phenological phenomena or agricultural activities.

The vernal equinox, autumnal equinox, summer solstice and winter solstice are divided from an astronomical point of view, reflecting the turning point of solar height change.

Beginning of spring, Changchun, beginning of autumn and beginning of winter reflect the beginning of the four seasons. Because China is a vast country with a very obvious monsoon and continental climate, the weather and climate vary greatly from place to place, so the four seasons in different regions are also very different.