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:
| Date | Moon Phase | Moon Visibility |
|---|---|---|
| September 1 | Waning Crescent | 31.4% |
| September 2 | Waning Crescent | 22.78% |
| September 3 | Waning Crescent | 15.02% |
| September 4 | Waning Crescent | 8.5% |
| September 5 | Waning Crescent | 3.59% |
| September 6 | Waning Crescent | 0.68% |
| September 7 | New Moon | 0.08% |
| September 8 | Waxing Crescent | 2.01% |
| September 9 | Waxing Crescent | 6.49% |
| September 10 | Waxing Crescent | 13.34% |
| September 11 | Waxing Crescent | 22.17% |
| September 12 | Waxing Crescent | 32.48% |
| September 13 | First Quarter | 43.65% |
| September 14 | Waxing Gibbous | 55.07% |
| September 15 | Waxing Gibbous | 66.13% |
| September 16 | Waxing Gibbous | 76.27% |
| September 17 | Waxing Gibbous | 85.02% |
| September 18 | Waxing Gibbous | 91.96% |
| September 19 | Waxing Gibbous | 96.82% |
| September 20 | Full Moon | 99.47% |
| September 21 | Waning Gibbous | 99.9% |
| September 22 | Waning Gibbous | 98.23% |
| September 23 | Waning Gibbous | 94.66% |
| September 24 | Waning Gibbous | 89.43% |
| September 25 | Waning Gibbous | 82.8% |
| September 26 | Waning Gibbous | 75.07% |
| September 27 | Waning Gibbous | 66.48% |
| September 28 | Waning Gibbous | 57.3% |
| September 29 | Last Quarter | 47.78% |
| September 30 | Waning Crescent | 38.21% |