A rare “Black Moon” occurs once every 33 months, marking the third new moon in a season that typically has four new moons. This event results in a dark side of the moon facing Earth, making it invisible at night and creating an exceptionally dark sky.
However, this coincidence coincides with the annual Perseid meteor shower, which peaks around August 12 but continues through August 24. The “Black Moon” falling on the same night means viewers have a better chance of spotting shooting stars due to the extremely dark conditions.
The next seasonal “Black Moon”, which will also be a Supermoon, is scheduled for August 20, 2028. Mark your calendars if you’re eager to witness this rare celestial event.
Source: https://www.mlive.com/news/2025/08/rare-black-moon-means-extra-dark-sky-for-viewing-perseid-meteor-shower-tonight.html