September 2025 Moon Phases Calendar
This calendar will show you the changing phases of the Moon in the month of september 2025.
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September 2025 Moon Phases
September 2025 Full Moon
The September Full Moon falls on September 7
September 2025 New Moon
The September New Moon falls on September 21
September 2025 Half Moon
These are the dates for the Half Moons in september
- First Quarter Moon: September 29
- Last Quarter Moon: September 14
This table shows the moon phase for each day in september 2025:
| Date | Moon Phase | Moon Visibility |
|---|---|---|
| September 1 | Waxing Gibbous | 63.63% |
| September 2 | Waxing Gibbous | 72.79% |
| September 3 | Waxing Gibbous | 81.28% |
| September 4 | Waxing Gibbous | 88.7% |
| September 5 | Waxing Gibbous | 94.59% |
| September 6 | Waxing Gibbous | 98.5% |
| September 7 | Full Moon | 99.99% |
| September 8 | Waning Gibbous | 98.81% |
| September 9 | Waning Gibbous | 94.88% |
| September 10 | Waning Gibbous | 88.41% |
| September 11 | Waning Gibbous | 79.8% |
| September 12 | Waning Gibbous | 69.64% |
| September 13 | Waning Gibbous | 58.58% |
| September 14 | Last Quarter | 47.26% |
| September 15 | Waning Crescent | 36.26% |
| September 16 | Waning Crescent | 26.1% |
| September 17 | Waning Crescent | 17.24% |
| September 18 | Waning Crescent | 10% |
| September 19 | Waning Crescent | 4.64% |
| September 20 | Waning Crescent | 1.3% |
| September 21 | New Moon | 0.02% |
| September 22 | Waxing Crescent | 0.74% |
| September 23 | Waxing Crescent | 3.34% |
| September 24 | Waxing Crescent | 7.64% |
| September 25 | Waxing Crescent | 13.45% |
| September 26 | Waxing Crescent | 20.53% |
| September 27 | Waxing Crescent | 28.66% |
| September 28 | Waxing Crescent | 37.6% |
| September 29 | First Quarter | 47.09% |
| September 30 | Waxing Gibbous | 56.88% |