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What causes high tide and low tide? Why are there two tides each day? In this diagram, you can see that the moon's gravitational force pulls on water in the oceans so that there are bulges in the ocean on both sides of the planet. The moon pulls water toward it, and this causes the bulge toward the moon. The bulge on the side of the Earth opposite the moon is caused by the moon pulling the Earth away from the water on that side. Up Next. If you are on the coast and the moon is directly overhead, you should experience a high tide.
Spring Tides. Spring tides are the result of the moon and sun working together to exert more pull on the earth's oceans. When the moon is in its full and new stages the earth, sun and moon are all aligned.This extra gravity pulling on the same point of the earth causes stronger high and low tides.pring Tides. Spring tides are the result of the moon and sun working together to exert more pull on the earth's oceans. When the moon is in its full and new stages the earth, sun and moon are all aligned.