Why is it very hot and seldom rains in the Pearl River Delta region of Guangdong in the last two months?

Generally speaking, the rain belt in China appears in May and exits in June, 65438+ 10. It landed from the coast of Guangdong in May, moved to the middle and lower reaches of the Yangtze River in June, reached the North China Plain in July and August, and reached the Northeast Plain in September. Later, with the gradual prosperity of the West Siberian High, the rain belt in China moved south and withdrew from the mainland of China around 10. It's July and August, and the rain belt in China is pushing northward. Guangdong is controlled by subtropical high, and the middle and lower reaches of the Yangtze River are dry in summer, with hot weather and scarce precipitation. By September, the weather will gradually cool down, and there will be a precipitation process in 10.