The last blue moon occurred on August 19, 2024.
Details on the Last Blue Moon
- This blue moon was a seasonal blue moon, which happens when there are four full moons in a season and the third full moon is called a blue moon.
- The next blue moon after that will be on May 31, 2026, which will be a calendrical blue moon (the second full moon in a single calendar month).
Explanation of Blue Moon Types
- A calendrical blue moon is the second full moon in a calendar month.
- A seasonal blue moon is the third full moon in a season with four full moons.
This makes the August 19, 2024, blue moon the most recent before the upcoming one in 2026.
