When will it rain in the south?

The rainy season in China can be divided into south rainy season and north rainy season. Usually, the rainy season in the south begins in April and the precipitation gradually decreases in September, so April to September is the rainy season in the south; The rainy season in northern China is relatively late, starting in June and ending in September, several months later than in the south.

This is because after winter, China began to blow southeast wind, and the southern region first felt the warmth and humidity brought by this monsoon, especially in April. In addition, at this time, the cold air is still going south from time to time, and there will be obvious precipitation when cold and warm air meet. It is estimated that this wind will last until June in the north.

Normal plum rain

Normal Meiyu in the middle and lower reaches of the Yangtze River begins in mid-June and ends in mid-July, which is in the two solar terms of "ear seed" and "summer solstice". The meiyu period is about 20-30 days, and the rainfall is between 200-400 mm. Before and after "Little Summer", the main rainfall belt moves northward to the Yellow River and Huaihe River basins, and then to Shandong and North China. The Yangtze River basin began to change from rainy and humid weather to sunny and hot summer. According to statistics, this normal plum rain accounts for about half of the total.