September 2021 Moon Phases Calendar
This calendar will show you the changing phases of the Moon in the month of september 2021.
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September 2021 Moon Phases
September 2021 Full Moon
The September Full Moon falls on September 20
September 2021 New Moon
The September New Moon falls on September 7
September 2021 Half Moon
These are the dates for the Half Moons in september
- First Quarter Moon: September 13
- Last Quarter Moon: September 29
This table shows the moon phase for each day in september 2021, click on each day to get more info:
| Date | Moon Phase | Moon Visibility |
|---|---|---|
| September 1 | Waning Crescent | 28.06% |
| September 2 | Waning Crescent | 19.73% |
| September 3 | Waning Crescent | 12.39% |
| September 4 | Waning Crescent | 6.44% |
| September 5 | Waning Crescent | 2.24% |
| September 6 | Waning Crescent | 0.17% |
| September 7 | New Moon | 0.51% |
| September 8 | Waxing Crescent | 3.41% |
| September 9 | Waxing Crescent | 8.82% |
| September 10 | Waxing Crescent | 16.47% |
| September 11 | Waxing Crescent | 25.93% |
| September 12 | Waxing Crescent | 36.63% |
| September 13 | First Quarter | 47.97% |
| September 14 | Waxing Gibbous | 59.32% |
| September 15 | Waxing Gibbous | 70.1% |
| September 16 | Waxing Gibbous | 79.77% |
| September 17 | Waxing Gibbous | 87.87% |
| September 18 | Waxing Gibbous | 94.05% |
| September 19 | Waxing Gibbous | 98.08% |
| September 20 | Full Moon | 99.89% |
| September 21 | Waning Gibbous | 99.51% |
| September 22 | Waning Gibbous | 97.1% |
| September 23 | Waning Gibbous | 92.86% |
| September 24 | Waning Gibbous | 87.07% |
| September 25 | Waning Gibbous | 80% |
| September 26 | Waning Gibbous | 71.91% |
| September 27 | Waning Gibbous | 63.06% |
| September 28 | Waning Gibbous | 53.73% |
| September 29 | Last Quarter | 44.16% |
| September 30 | Waning Crescent | 34.63% |