Lunitidal Interval

Lunitidal Interval Web App Calculator.

Specific clocks and wristwatches to allow for simple tidal predictions use the Lunitidal Interval to calibrate the results.
Calculate your value here.

Rio Grande (Rio Grande do Sul, Brazil)

Lunitidal Interval


The Lunitidal interval can only be used to estimate the tides at places where the semi-diurnal component of the tide is dominant and should not be used to estimate tides for any critical purpose.

Calculate a new Lunitidal Interval value.