According to the formula, the eighth day is twenty-three, two activities a day, the first and fifteenth days, two activities a day. Dry is low tide, full of high tide. There is also a saying in Rizhao to calculate the tidal time: it is dry at both ends in the morning and evening on the 23rd of the eighth day, and hollow at noon on the 1st day15th. It has the same meaning as the above formula. Pay attention to the time when catching the sea.
Tides are different every day. It is best to go to sea within one hour before and after the lowest tide level, and the ebb time is also different.
Do the following: Open the search engine and search for keywords such as "Tide Table of Dandong, Liaoning Province" or "Schedule of Dandong going to sea". Look for reliable sources, such as the local government official website, the website of the Meteorological Observatory, etc. Enter the corresponding information, such as selecting Dandong City, query date and other conditions, and click Search.
The timetable for ebbing tide and catching the sea is as follows: the first to fifteenth day of the lunar calendar: high tide time = date *0.8. Lunar calendar 16 to 30: high tide time = (date-15)*0.8. The law of seawater fluctuation is: there are two high tides every day, with an interval of 12 hours.
There are two time periods in a day when you can go to sea, so you should determine the best time to go to sea locally. Every place has its own tide table, which can be checked and confirmed online. It is best when the wind is southerly, and it is better when the wind is stronger. It's best to go to sea on cloudy days, or if the northwest wind of grade 4 to 5 blows for a few hours and then turns to the south wind. This is the best time to go to sea.