When Is The Next Full Moon 2024. The full moon occurs when the moon and the sun are on opposites sides of the earth — this causes the sun's light to reflect off of the entire surface of the moon, presenting us with what appears to be a complete sphere. Monday’s full moon is a seasonal one:
Wednesday * 18 september 2024 * 4:34:30 am. Once a month, the earth, the moon, and the sun align in a straight line with the earth in between.