Why is it so hot in Guangzhou in summer?

Guangzhou is just south of the Tropic of Cancer, with an average annual temperature of 22 degrees. The average temperature in the hottest July is 28.4 degrees. The average temperature in July is relatively hot in the whole country, but it is not as hot as some places in the middle and lower reaches of the Yangtze River.

However, this place in Guangzhou feels really hot. The main reason is that Guangzhou is not only high in temperature, but also very humid. The average humidity in July is 84%, which is very high in other provinces. The higher the temperature and humidity, the hotter it will be, which is a sultry feeling. Just like winter, the higher the temperature and humidity, the colder it will feel. In dry and cold weather, even if the temperature is below zero, you won't feel very cold. But humidity and cold are terrible.