What are the occurrence of high ocean tides?

High ocean tides typically occur twice a day, approximately every 12 hours and 25 minutes. This is due to the gravitational pull of the moon and the sun on the Earth's oceans. The highest tides, known as spring tides, occur when the sun, moon, and Earth are aligned, resulting in increased gravitational pull. These occur during the full moon and new moon phases. Conversely, the lowest tides, known as neap tides, occur when the sun and moon are at right angles to each other, resulting in decreased gravitational pull.

High ocean tides occur:

- Twice a day: Most locations experience two high tides and two low tides each day. This is mainly due to the gravitational pull of the Moon.
- During full and new moons: The highest and lowest tides (spring tides) occur during full and new moons when the gravitational forces of the Sun and Moon align.
- During equinoxes: Spring tides are also more pronounced during the equinoxes (March and September) when the Earth's axis is tilted neither towards nor away from the Sun.
- Tidal waves: High tides can also be caused by tidal waves, such as tsunamis, which are large-scale ocean waves generated by earthquakes, landslides, or volcanic eruptions.