Legal Definitions - mean low tide

Mean low tide is the average of all low tides over a fixed period of time. It is a term used to measure a shore's upland boundary.

For example, if the tide goes out at a beach twice a day, the mean low tide would be the average of all the lowest points of those two tides over a certain period of time.

Mean low tide is important for determining property lines and building codes near bodies of water. It is also used by sailors and boaters to navigate safely in shallow waters.