The Sturgeon Moon...

An imported native American name that seems to have become accepted in the UK, August’s full Moon was traditionally called the "Sturgeon Moon" because the giant sturgeon of the Great Lakes and Lake Champlain were most readily caught during this part of summer...

This full Moon is also a Blue Moon. Specifically, it’s a seasonal Blue Moon, meaning that it’s the third of the four full Moons to occur within the season of summer. Typically, only three full Moons happen in a season, but when the dates of the full Moons and those of the equinoxes and solstices line up just right, a fourth full Moon can manage to fit into the season as well. The third full Moon in the series is then considered to be a Blue Moon.