High tide time in Zhuhai: the high tide begins at 6:57 am and reaches its climax at 12:20; The climax began at 20:03 pm and reached its climax at 00:46 the next day.

The ebb and flow of tides are regular and timely. Each cycle of high tide is 24 hours and 50 minutes. The time and law of each month and year are as follows: there are two spring tides every month, the time is the first day and the fifteenth day respectively; There are also two small tides, the seventh day and the twenty-second day. And on the 9th and 23rd of every month, it rises at noon in the morning and evening.

According to scientific speculation, the moon orbits the earth once a month (a little more than 29.5 days). When the moon, the sun and the earth are in a straight line, the tidal fluctuation is the largest, which is the new moon and the full moon (the first and fifteenth days), and the tidal fluctuation is the smallest when the sun, the moon and the earth form a right triangle, which is the first quarter of the month (the seventh and eighth days).

But in fact, the formation time of high tide and low tide is not exactly the above time, because the shape of the earth is very complicated, so the maximum tide and minimum tide appear a few days later than the theory.