If you mean tidal force on Earth’s oceans, the Moon is much more important than the Sun.
- 🌙 Moon: about 2.2 times the Sun’s tidal force
- ☀️ Sun: about 46% as strong as the Moon’s tidal force
If we express their relative contributions as a simple ratio of Moon + Sun = 100%:
- Moon ≈ 69%
- Sun ≈ 31%
So, a useful way to explain it is:
The Moon produces roughly two-thirds of the combined lunar-and-solar tidal forcing, while the Sun contributes roughly one-third.
The important point is that this is tidal force, not ordinary gravitational pull. The Sun’s total gravitational pull on Earth is much larger than the Moon’s, but the Sun is so far away that its difference in gravitational pull across Earth—the part responsible for tides—is smaller.
