A total lunar eclipse happens on average about every 2.5 years as a global event, but any given location on Earth typically sees one roughly every 2–3 years, assuming clear skies.

Quick Scoop: Key Facts

  • Total lunar eclipses are less common than partial or penumbral eclipses, making up about one‑third of all lunar eclipses.
  • Globally, there are usually 2–5 lunar eclipses of all types per year, but not all of them are total.
  • Statistically, at least two total lunar eclipses occur within any span of about three years, though some years have none and some have two.
  • From one spot on Earth, you can expect to witness a total lunar eclipse roughly every 2–3 years, because when one happens it’s visible from the entire night side of Earth.

Why They’re Not More Frequent

  • A total lunar eclipse only happens at full Moon and when the Moon lines up closely with one of its orbital nodes, so Earth’s shadow can cover it completely.
  • Most full Moons miss this alignment, so you just get an ordinary full Moon instead of an eclipse.
  • Over an 18‑year period (a saros cycle), a single location can catch around three or four total lunar eclipses from start to finish, plus several partial ones.

Mini Example

Imagine you start skywatching this year and stay in the same city:

  • In the next decade, it would be normal to see several lunar eclipses total, partial, or penumbral.
  • Among those, you’d likely get a handful of total lunar eclipses, spaced a couple of years apart on average.

TL;DR:
Total lunar eclipses occur on Earth about every 2.5 years, and from any one place you’ll usually get a chance to see one roughly every 2–3 years, weather permitting.

Information gathered from public forums or data available on the internet and portrayed here.