August 19 2024 Supermoon. It will also be a supermoon and a blue moon (the third of four full moons in an astronomical season). Edt (1826 gmt) on monday, aug.

Ahmet okatali / anadolu / getty. Stargazers will be treated to a “blue supermoon” on monday night, with the rare event expected to be visible thanks to clear skies.