How many days can I check the tide table?

The tide table can be checked for several days, usually about 7 days.

Tide tables are used to predict the tide and depth of local seawater. It needs to be calculated according to oceanography, meteorology, mathematics and other factors, so its prediction range is not infinite. Generally speaking, the time range that the tide table can predict is about 7 days, because the marine environment will change with time, and after 7 days, this change will become very complicated and unpredictable.

If you want to query the tidal information for more days, you can use a higher-level tidal forecasting tool, such as a tidal forecasting system, but this may require more complicated calculations, so the accuracy may not be guaranteed.

In a word, for general ocean activities, it is enough to use tide tables within 7 days. If it takes longer, we can consider more advanced tidal forecasting tools. In addition, it should be noted that even if the tide table or tidal forecasting system is used, the occurrence of unexpected events cannot be completely ruled out, so it is necessary to be cautious and pay attention to environmental changes when conducting marine activities.