Traditional Culture Encyclopedia - Weather forecast - When is the rainy season?

When is the rainy season?

Meiyu begins around mid-June.

Meiyu is in early summer. According to climate statistics, Meiyu began in mid-June and ended in early July. From the middle and lower reaches of the Yangtze River in China through the Yellow Sea to the southern part of Japan, there was continuous rain during the long rainy period. Meiyu is a unique climate phenomenon in East Asia.

Meiyu is a climatic phenomenon of continuous rainy weather. Meiyu season is also the mature season of plums in Jiangnan, so it is called "Meiyu". After the continuous rainy season, the weather began to be dominated by the Pacific subtropical high and officially entered the summer heat. At this time, the air humidity is high and the temperature is high, which easily leads to mildew of clothes, which worries many housewives.

Extended data:

Reasons for the formation of plum rain:

1. There is blocking high pressure or stable high pressure ridge in the middle troposphere in high latitudes of Asia, and the atmospheric circulation is relatively stable with little change.

2. The westerly circulation in the mid-latitude area is gentle, and frequent short-wave activities provide cold air conditions for the Jianghuai area.

3. The western Pacific subtropical high has an obvious process of extending westward and jumping northward. The ridge line of the 500 hPa subtropical high is stable between 20 and 25 degrees north latitude, and the warm and humid air flow is transported from the edge of the subtropical high to the Jianghuai Basin.