Eli5:How come some days will have two high tides and two low tides whereas other days have one high tide and two low tides?

Question

Eli5:How come some days will have two high tides and two low tides whereas other days have one high tide and two low tides?

In: 0

Answer 1

High tide is about every 12 hours and 25 minutes. This means that most days you will have two of them.

Some days you will have a high tide around 6 in the morning and another at half past six in the evening.

However the high tide happens 25 minutes later every day.

Every so often you end up with high tide happening around noon. The high tide before that will have happened shortly before midnight the day before and the next one shortly after midnight when it is already the next day.

However when you have only one high tide you will still have two low tides in that day.