Is beginning of autumn still summer? beginning of autumn is still summer, and beginning of autumn is the beginning of autumn, but the temperature in meteorology is not low enough, so it is still summer. The autumn standard of meteorology is that after the heat, it is considered as autumn when the average temperature of five days is stable below 22 degrees, and it ends when it is below 1 degrees. Autumn, the third season of the year, is the transitional season from summer to winter. Autumn in the northern hemisphere is from September to November, autumn in the southern hemisphere is from March to May, and astronomy is from the autumnal equinox to the winter solstice. beginning of autumn is the 13th of the 24 solar terms. On August 7th or 8th every year, it is beginning of autumn when the sun reaches 135 longitude. "Autumn" means that the summer is cool, which means the beginning of autumn. But in beginning of autumn, the weather in Jianghuai area is still very hot. According to the standard of dividing seasons by average temperature, it must be that the average temperature of 5 days is below 22°C to be considered as autumn. According to this standard, the Jianghuai area generally enters autumn in the middle and late September. After beginning of autumn, although the summer heat is hard to disappear for a while, there is still the afterglow of "autumn tiger", but the general trend is that the weather is getting cooler. The daily range of temperature is gradually obvious, which is often very hot during the day and cool at night.