Moon Phases 2025 September 2025. The phases of the moon in december 2025. The beginning of september 2025 starts with a new moon moon phase that is 0.00% illuminated.

Below you can find dates and hours of all moon phases in 2025. September 2025 moon phase calendar has the 8 lunar phases of the moon, percent of illumination visible from earth, age of the moon in the lunation cycle of approximately 29.53 days for a full cycle, angle representing the terminator phase angle as a fraction of a full circle with both 0 and 1 corresponding to a new moon and 0.5 corresponding to.