Start and end time of the initial stage: July 20231-July 20, 2023, *** 10 days; Mid-Mid-Autumn Festival: July 2, 20231day-August 9, 2023, ***20 days; The start and end time of terminal dive: August 202310—August 2023 19, *** 10 days.
The dog days, which appear between the summer heat and the summer heat, are the period with the highest temperature, the highest humidity and the most severe sultry heat in a year. Three volts can be divided into initial, middle and final volts, and its date is determined by the coordination of 24 solar terms and the dates of dry and branch. After "entering the volt", many places in the country will enter the continuous high temperature mode.
Causes of hot weather in dog days
1. From summer to the future, although the direct point of the sun moves south and the daytime time is gradually shortened, the heat radiated by the sun to the ground is still greater than that radiated by the ground to the air. At this time, the heat on the ground will increase day by day, and the heat absorbed by the ground will accumulate to the maximum during the three volts.
In dog days, the southeast wind mainly blows from the Pacific Ocean. The sea breeze in dog days causes high humidity, while the specific heat capacity of water is large, and humid air can absorb a lot of heat. Therefore, the dog days are often sultry and prone to heatstroke.
3. Although the terrain of our country is changeable, in dog days, most areas of our country are controlled by subtropical high, which is beneficial to sunlight and ground radiation warming, resulting in hot weather in dog days.