Moon Phases September 2025
Full Moon
7 September
Last Quarter
14 September
New Moon
21 September
First Quarter
29 September
Moon phase day by day
| Day | Phase | Illumination |
|---|---|---|
| 1 | First Quarter | 62% |
| 2 | Waxing Gibbous | 72% |
| 3 | Waxing Gibbous | 80% |
| 4 | Waxing Gibbous | 88% |
| 5 | Waxing Gibbous | 94% |
| 6 | Full Moon | 98% |
| 7 | Full Moon | 100% |
| 8 | Full Moon | 99% |
| 9 | Waning Gibbous | 96% |
| 10 | Waning Gibbous | 90% |
| 11 | Waning Gibbous | 81% |
| 12 | Waning Gibbous | 71% |
| 13 | Last Quarter | 60% |
| 14 | Last Quarter | 49% |
| 15 | Last Quarter | 38% |
| 16 | Waning Crescent | 28% |
| 17 | Waning Crescent | 19% |
| 18 | Waning Crescent | 11% |
| 19 | Waning Crescent | 5% |
| 20 | New Moon | 2% |
| 21 | New Moon | 0% |
| 22 | New Moon | 1% |
| 23 | New Moon | 3% |
| 24 | Waxing Crescent | 7% |
| 25 | Waxing Crescent | 12% |
| 26 | Waxing Crescent | 19% |
| 27 | Waxing Crescent | 27% |
| 28 | First Quarter | 36% |
| 29 | First Quarter | 46% |
| 30 | First Quarter | 55% |
Illumination at noon (UTC) for each day.
Frequently asked questions
When is the full moon in September 2025?
The full moon in September 2025 is on 7 September.
When is the new moon in September 2025?
The new moon in September 2025 is on 21 September.