Qinhuangdao weather on September 9

20-24 degrees, the highest temperature.
It will be cool in the morning and evening. If you are not used to winter swimming, don't swim if you are not fat. The sea water will be colder than the air.

You can go swimming in Beidaihe in early September, because the temperature in Beidaihe and Qinhuangdao is also around 28 degrees at this time, so you can swim in the water.
Beidaihe is a rest and convalescence area for heroes and model figures and foreign experts. It has 159 sanatoriums and training centers at all levels and types. It is the largest rest and convalescence base and conference training center in the country.
In 2017, the GDP of Beidaihe District reached 5.854 billion yuan, an increase of 7.6%; the total fiscal revenue reached 1.285 billion yuan, an increase of 57.7%; the per capita disposable income of urban residents reached 37,981 yuan, an increase of 8.2%. The per capita disposable income of residents reached 17,853 yuan, an increase of 8%.
On the shore of the beautiful Daihe River, there is a small village, named Beidaihe because it is located to the north of Daihe River. In 1893, the Tangxu Railway, the first railway, was extended to this point, and a railway station was built in the south of Beidaihe Village, which was called Beidaihe Railway Station. Later, for convenience, people called the area from the south of Beidaihe Railway Station to the seaside: Beidaihe or Beidaihe Beach.
The Beidaihe Qinxing Palace ruins are located at No. 8, Jinshanzui Road, Beidaihe District, Quexin City, Qinhuangdao. It is one of the ruins of the large-scale palace complex built during Qin Shihuang's eastern tour. In 1996, it was announced as the fourth batch of national key cultural relics protection The unit was listed by the State Administration of Cultural Heritage as "one of the top ten archaeological discoveries" in the country during the "Seventh Five-Year Plan" period, which fully supports the origin of the place name of Qinhuangdao.