The Full Flower Moon in May 2025 will reach peak illumination on Monday, May 12, at 12:56 p.m. EDT. It's also a micromoon, meaning it will appear smaller than a typical full moon due to the moon's distance from Earth. 

Elaboration:

The Flower Moon is the name given to the full moon in May, reflecting the abundance of blooming flowers during this month. 

While the peak illumination is at 12:56 p.m. EDT on May 12, the full moon will be visible throughout the evening of Sunday, May 11, and Monday, May 12. 

The May full moon is the third and final micromoon of the year, meaning it will be smaller than the average full moon.