20 19 lunar tides

It can be found on the official website of the National Ocean Science Data Center. Click on the tide forecast on the homepage of the website, and then choose Tanggu, Tianjin to see it. The specific viewing method is as follows:

1. Enter the National Ocean Science Data Center on Baidu, find its official website and click Enter.

2. After entering the website, there is a drop-down page to find the tide forecast and click Enter.

3. After the page jumps, select the port and date to query, and then click Query.

4. At the bottom of the query interface, you can see the tide table of the corresponding date of the port.