The Moon influences ocean tides.
Differences in the Moon’s gravitational pull across Earth help drive tides. The Sun and local geography matter too.
Show me why
Tides result from differences in gravitational force across Earth, not simply water being lifted toward the Moon. The Sun also contributes. Coastlines, ocean depth, Earth’s rotation and weather affect local timing and height.
A common misconception
The Moon is not the only influence, and high tide is not always directly under the Moon.
Where the limits are
Not every coast has two similar high tides a day. Local tide tables are needed for practical decisions.
How we know
NOAA connects tidal forces with observed patterns. Compare predicted tides with a local tide gauge over many lunar cycles. A simple two-bulge diagram is useful for the basic mechanism but cannot predict every coastal tide.
What would change this conclusion?
A better physical account would have to reproduce the lunar timing and spatial patterns in tide observations.
Sources you can inspect
- NOAATides
Explains lunar and solar tidal forces and local complications.
Publication date not stated · Checked in initial research 2026-10-08
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