Moon phases in September 2025
All 30 days, computed from the ephemeris rather than copied from another calendar: the Moon’s sign, the exact instant it changes sign, and the lit fraction of the disc. Shown in your own timezone.
- Corn MoonSeptember 715.4° Pisces
- New MoonSeptember 2129.1° Virgo
Day by day
The four quarter instants are marked on the day they fall; every other day carries the interval it is in. Four of the eight phases are moments and four are stretches, which is the one thing most calendars leave out.
| Date | Phase | Sign | Illumination | Notes | |
|---|---|---|---|---|---|
| Mon 1 | Waxing Gibbous | Sagittarius | 62% | ||
| Tue 2 | Waxing Gibbous | Sagittarius→Capricorn | 71% | ||
| Wed 3 | Waxing Gibbous | Capricorn | 80% | ||
| Thu 4 | Waxing Gibbous | Capricorn→Aquarius | 87% | ||
| Fri 5 | Waxing Gibbous | Aquarius | 94% | ||
| Sat 6 | Waxing Gibbous | Aquarius→Pisces | 98% | ||
| Sun 7 | Full Moon | Pisces | 100% | ||
| Mon 8 | Waning Gibbous | Pisces→Aries | 99% | ||
| Tue 9 | Waning Gibbous | Aries | 96% | ||
| Wed 10 | Waning Gibbous | Aries→Taurus | 90% | ||
| Thu 11 | Waning Gibbous | Taurus | 82% | ||
| Fri 12 | Waning Gibbous | Taurus→Gemini | 72% | ||
| Sat 13 | Waning Gibbous | Gemini | 61% | ||
| Sun 14 | Last Quarter | Gemini | 49% | ||
| Mon 15 | Waning Crescent | Gemini→Cancer | 38% | ||
| Tue 16 | Waning Crescent | Cancer | 28% | ||
| Wed 17 | Waning Crescent | Cancer→Leo | 19% | ||
| Thu 18 | Waning Crescent | Leo | 11% | ||
| Fri 19 | Waning Crescent | Leo→Virgo | 5% | ||
| Sat 20 | Waning Crescent | Virgo | 2% | ||
| Sun 21 | New Moon | Virgo→Libra | 0% | ||
| Mon 22 | Waxing Crescent | Libra | 0% | ||
| Tue 23 | Waxing Crescent | Libra | 3% | ||
| Wed 24 | Waxing Crescent | Libra→Scorpio | 7% | ||
| Thu 25 | Waxing Crescent | Scorpio | 12% | ||
| Fri 26 | Waxing Crescent | Scorpio→Sagittarius | 19% | ||
| Sat 27 | Waxing Crescent | Sagittarius | 27% | ||
| Sun 28 | Waxing Crescent | Sagittarius | 36% | ||
| Mon 29 | First Quarter | Sagittarius→Capricorn | 45% | ||
| Tue 30 | Waxing Gibbous | Capricorn | 55% | ||
Rows are UTC calendar days. The exact times follow the timezone setting above, so a time close to midnight can belong to the neighbouring day in your own zone.
- 1
- Full moons
- 1
- New moons
- 13
- Sign changes
- 100%
- Brightest night
The Moon passes through 14 signs this month, in order: Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn. It changes sign 13 times — roughly every two and a third days, though not evenly, because the Moon’s speed varies about twelve per cent over an orbit.
A lunar eclipse this month
The full moon on September 7 is a Total lunar eclipse, with 100% of the disc inside the Earth’s umbra at maximum, at Pisces. An eclipse can only fall on a full moon, because it needs the Moon exactly opposite the Sun and close to a node — which is also why they arrive in pairs a fortnight either side of a solar eclipse.
Frequently asked questions
When is the full moon in September 2025?
There are 1 in September 2025. The exact instants are in the table above, shown in your own timezone, with the degree and sign each one falls on.
When is the new moon in September 2025?
There are 1 in September 2025, listed to the minute in the table above along with every other phase of the month.
What timezone are these times in?
Your own, resolved in your browser. The rows are UTC calendar days, so an instant close to midnight can belong to the neighbouring day once converted — the table marks those with a small +1 or −1. You can switch the whole page to UTC if you want to compare it against a site that publishes UTC.
What sign is the Moon in during September 2025?
It moves through 14 of them, changing sign 13 times. The exact instant of each change is in the sign column above. The Moon spends about two and a third days in a sign, which is why it covers the whole zodiac in a month while the Sun takes a year.