On using EasyTide Predictions, I notice a difference between the Times / Heights shown on the website compared with the Times / Heights on the day. Why is this?
It is important to note that the data displayed on EasyTide are predicted values only. They do not take into account any meteorological effects which may be prevalent on the day(s) in question. Such effects (such as wind and pressure effects) can significantly alter the observed tide, causing it to deviate considerably from the predicted values.