Moon calendar for September 2027

By Maren Tremblay, Fatesight editor · Last updated September 30, 2026

Every day of September 2027 with the Moon's phase and how much of it is lit at 12:00 UTC. The new Moon, the quarters and the full Moon are marked on the day they happen in UTC.

This month's full Moon is the Harvest Moon, on September 15, with the Moon in Pisces. The new Moon falls on September 30, with the Moon in Libra.

New Moon, quarters and full Moon in September 2027

First quarterTuesday, September 7, 2027 at 18:31 UTC
Full MoonWednesday, September 15, 2027 at 23:04 UTC
Last quarterThursday, September 23, 2027 at 10:20 UTC
New MoonThursday, September 30, 2027 at 02:36 UTC

Times are in Coordinated Universal Time (UTC), to the minute, and agree with NASA's published table of Moon phases to within two minutes. Where your browser allows, your own clock is shown under each.

The Moon on each day of September 2027
Sun	Mon	Tue	Wed	Thu	Fri	Sat
			September 1: Waxing crescent, 1% lit	September 2: Waxing crescent, 4% lit	September 3: Waxing crescent, 11% lit	September 4: Waxing crescent, 18% lit
September 5: Waxing crescent, 28% lit	September 6: Waxing crescent, 37% lit	September 7: First quarter, 47% lit	September 8: Waxing gibbous, 57% lit	September 9: Waxing gibbous, 67% lit	September 10: Waxing gibbous, 75% lit	September 11: Waxing gibbous, 83% lit
September 12: Waxing gibbous, 89% lit	September 13: Waxing gibbous, 95% lit	September 14: Waxing gibbous, 98% lit	September 15: Full Moon, 100% lit	September 16: Waning gibbous, 100% lit	September 17: Waning gibbous, 98% lit	September 18: Waning gibbous, 94% lit
September 19: Waning gibbous, 88% lit	September 20: Waning gibbous, 80% lit	September 21: Waning gibbous, 71% lit	September 22: Waning gibbous, 60% lit	September 23: Last quarter, 49% lit	September 24: Waning crescent, 38% lit	September 25: Waning crescent, 27% lit
September 26: Waning crescent, 17% lit	September 27: Waning crescent, 9% lit	September 28: Waning crescent, 4% lit	September 29: Waning crescent, 1% lit	September 30: New Moon, 0% lit

How is the Moon moving through September 2027?

At noon UTC the Moon is waxing, growing toward full, from September 1 to September 15 and September 30 to September 30 (16 days), and waning on the other 14. It is at least half lit on 15 days. Time between the principal phases: First quarter September 7, full Moon September 15: 8 days 5 hours; Full Moon September 15, last quarter September 23: 7 days 11 hours; Last quarter September 23, new Moon September 30: 6 days 16 hours.

Which sign is the Moon in during September 2027?

Each stay to the minute, in UTC.

Virgo: from the start of September 2027 until September 2 at 05:08 UTC.
Libra: from September 2 at 05:08 UTC until September 4 at 07:45 UTC.
Scorpio: from September 4 at 07:45 UTC until September 6 at 14:02 UTC.
Sagittarius: from September 6 at 14:02 UTC until September 9 at 00:12 UTC.
Capricorn: from September 9 at 00:12 UTC until September 11 at 12:50 UTC.
Aquarius: from September 11 at 12:50 UTC until September 14 at 01:39 UTC.
Pisces: from September 14 at 01:39 UTC until September 16 at 12:57 UTC.
Aries: from September 16 at 12:57 UTC until September 18 at 22:06 UTC.
Taurus: from September 18 at 22:06 UTC until September 21 at 05:06 UTC.
Gemini: from September 21 at 05:06 UTC until September 23 at 10:03 UTC.
Cancer: from September 23 at 10:03 UTC until September 25 at 13:01 UTC.
Leo: from September 25 at 13:01 UTC until September 27 at 14:29 UTC.
Virgo: from September 27 at 14:29 UTC until September 29 at 15:31 UTC.
Libra: from September 29 at 15:31 UTC until the end of September 2027.

Questions about the Moon in September 2027

When is the full Moon in September 2027?

The full Moon is on September 15 at 23:04 UTC with the Moon in Pisces. It is the Harvest Moon, a name from the Old Farmer's Almanac tradition.

When is the new Moon in September 2027?

The new Moon is on September 30 at 02:36 UTC with the Moon in Libra.

How much of the Moon is lit in September 2027?

At 12:00 UTC on September 1 the Moon is 1% lit (waxing crescent), on September 15 100% (full Moon) and on September 30 0% (new Moon). The dimmest day at noon UTC is September 30 at 0%, the brightest September 15 at 100%.

Does September 2027 have a Blue Moon or an eclipse?

No: the one full Moon is September 15, and nothing is eclipsed.