When will the temperature drop?
In the south, it is generally believed that there will be a big fire between heaven and earth after beginning of autumn. That is to say, after beginning of autumn 18 days, the weather will start to get cold in the morning and evening, but the temperature will still be around 35 degrees Celsius during the day, and sometimes it will still feel sultry. Generally, it won't be really cool until around the Millennium in early September.
Related solar terms:
The arrival of the summer heat marks the end of the hot weather, and the summer heat gradually fades, from hot to cold. Due to the influence of short-term reheating weather (commonly known as "autumn tiger"), there is still a continuous high temperature after the summer heat, which is generally cool until after the Millennium.
Summer solar terms are in the period of short-term high-temperature weather (autumn tiger), which generally occurs between August and September in the Gregorian calendar. The duration of autumn tigers generally ranges from half a month to two months.