What day is early autumn this year?

Excuse me, are you asking "When is beginning of autumn this year"? Beginning of autumn, August 8, 2023.

Beginning of autumn is one of the 24 solar terms. In ancient times, "beginning of autumn" meant the season when crops began to harvest. In China, it is customary to start autumn in beginning of autumn. After that, the temperature began to drop. The sun position in beginning of autumn reaches longitude 135, and festivals are celebrated on August 7th or 8th every year. After beginning of autumn, the warm and humid airflow began to weaken and recede eastward, and the cold air in the north would go south to the Jianghuai Basin, and the temperature began to drop, so the agricultural proverb "An autumn rain leads to a cold". In a few years, the power of warm and humid air flow will be particularly strong, and the high temperature will continue, commonly known as "autumn tiger".