The weather starts to get cooler in a few months of the year.

August.

The entry into August also represents the arrival of autumn. In autumn, the altitude angle of the sun gradually decreases, and the temperature gradually decreases from hot to hot. Autumn is one of the four seasons of "spring, summer, autumn and winter".

According to modern meteorology, autumn in the northern temperate zone ranges from August 23 (summer heat) to November 20 (light snow); autumn in the southern temperate zone ranges from February 19 (rain in the northern hemisphere) to May January 21st (Little Full in the Northern Hemisphere). In our country, autumn is traditionally the starting point of autumn and ends with the beginning of winter.

Extended information

As autumn enters, cold air from the north continues to invade, but the force is not very strong. It often creates crisp autumn weather in northern my country, and continuous autumn rain often occurs in West China. The temperature will gradually drop in autumn, but generally more slowly than in winter. Due to the difference in dry and wet conditions, different regions will experience cold and rainy, or dry and cool weather conditions.

In the colder late autumn, due to the large temperature difference between day and night, the water vapor that evaporates during the day will condense at night, either as dew or frost. In autumn, the direct sun point gradually moves southward from the northern hemisphere. After the autumnal equinox, it crosses the equator and the sun shines directly on the southern hemisphere. From the northern hemisphere, the angle of the sun gradually becomes lower, and the difference between the length of day and night becomes smaller. During the autumnal equinox, day and night are of equal length.