When boating on coastal waters, it is important to be aware of the tides. if high tide is at noon, when can you expect the next low tide?

The next low tide would come between 12-13 hours after noon. The tides of the Earth are very much dependent to the moon's orbital progress. The Earth takes 24 hours and 50.5 minutes to exactly rotate under the moon, this is the reason why every 12 hours the tides change. People who are boating on coastal waters must keep track of the tides in order for them to know when and where it is safe to be located during such situations.