The first full moon of May 2026 will occur on May 1 ... Instead, it describes a relatively rare event in the lunar calendar. A blue moon is typically defined as the second full moon that occurs ...

The upcoming Blue Moon on May 31, 2026, will be a monthly Blue ... So every 2.5 years or so a 13th full moon is observed within a calendar year. This 13th full moon doesn't conform to the normal ...

On the rare occasion we get two full moons in the month it's called a 'blue moon' — hence, the saying 'once in a blue moon.' The next one will occur on May 31, 2026. The flower moon will reach ...

but will creep forward in the calendar with each passing month. (Eventually, we'll get two full moons in May 2026, aka a "blue moon.") Some astronomers consider three of 2025's full moons to be ...