Moon calendar for September 2025

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

Every day of September 2025 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 Corn Moon, on September 7, with the Moon in Pisces. The new Moon falls on September 21, with the Moon in Virgo. Total lunar eclipse on September 7. Partial solar eclipse on September 21.

New Moon, quarters and full Moon in September 2025

Full MoonSunday, September 7, 2025 at 18:09 UTC
Last quarterSunday, September 14, 2025 at 10:33 UTC
New MoonSunday, September 21, 2025 at 19:54 UTC
First quarterMonday, September 29, 2025 at 23:54 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 2025
Sun	Mon	Tue	Wed	Thu	Fri	Sat
	September 1: Waxing gibbous, 62% lit	September 2: Waxing gibbous, 71% lit	September 3: Waxing gibbous, 80% lit	September 4: Waxing gibbous, 87% lit	September 5: Waxing gibbous, 94% lit	September 6: Waxing gibbous, 98% lit
September 7: Full Moon, 100% lit	September 8: Waning gibbous, 99% lit	September 9: Waning gibbous, 96% lit	September 10: Waning gibbous, 90% lit	September 11: Waning gibbous, 82% lit	September 12: Waning gibbous, 72% lit	September 13: Waning gibbous, 61% lit
September 14: Last quarter, 49% lit	September 15: Waning crescent, 38% lit	September 16: Waning crescent, 28% lit	September 17: Waning crescent, 19% lit	September 18: Waning crescent, 11% lit	September 19: Waning crescent, 6% lit	September 20: Waning crescent, 2% lit
September 21: New Moon, 0% lit	September 22: Waxing crescent, 0% lit	September 23: Waxing crescent, 3% lit	September 24: Waxing crescent, 7% lit	September 25: Waxing crescent, 12% lit	September 26: Waxing crescent, 19% lit	September 27: Waxing crescent, 27% lit
September 28: Waxing crescent, 36% lit	September 29: First quarter, 45% lit	September 30: Waxing gibbous, 55% lit

How is the Moon moving through September 2025?

At noon UTC the Moon is waxing, growing toward full, from September 1 to September 7 and September 21 to September 30 (17 days), and waning on the other 13. It is at least half lit on 14 days. Time between the principal phases: Full Moon September 7, last quarter September 14: 6 days 16 hours; Last quarter September 14, new Moon September 21: 7 days 9 hours; New Moon September 21, first quarter September 29: 8 days 4 hours.

Which sign is the Moon in during September 2025?

Each stay to the minute, in UTC.

Sagittarius: from the start of September 2025 until September 2 at 01:45 UTC.
Capricorn: from September 2 at 01:45 UTC until September 4 at 10:32 UTC.
Aquarius: from September 4 at 10:32 UTC until September 6 at 15:55 UTC.
Pisces: from September 6 at 15:55 UTC until September 8 at 18:38 UTC.
Aries: from September 8 at 18:38 UTC until September 10 at 20:04 UTC.
Taurus: from September 10 at 20:04 UTC until September 12 at 21:39 UTC.
Gemini: from September 12 at 21:39 UTC until September 15 at 00:31 UTC.
Cancer: from September 15 at 00:31 UTC until September 17 at 05:20 UTC.
Leo: from September 17 at 05:20 UTC until September 19 at 12:24 UTC.
Virgo: from September 19 at 12:24 UTC until September 21 at 21:41 UTC.
Libra: from September 21 at 21:41 UTC until September 24 at 09:01 UTC.
Scorpio: from September 24 at 09:01 UTC until September 26 at 21:38 UTC.
Sagittarius: from September 26 at 21:38 UTC until September 29 at 09:55 UTC.
Capricorn: from September 29 at 09:55 UTC until the end of September 2025.

Questions about the Moon in September 2025

When is the full Moon in September 2025?

The full Moon is on September 7 at 18:09 UTC with the Moon in Pisces. It is the Corn Moon, a name from the Old Farmer's Almanac tradition.

When is the new Moon in September 2025?

The new Moon is on September 21 at 19:54 UTC with the Moon in Virgo.

How much of the Moon is lit in September 2025?

At 12:00 UTC on September 1 the Moon is 62% lit (waxing gibbous), on September 15 38% (waning crescent) and on September 30 55% (waxing gibbous). The dimmest day at noon UTC is September 21 at 0%, the brightest September 7 at 100%.

Does September 2025 have a Blue Moon or an eclipse?

It has an eclipse: Total lunar eclipse on September 7, Partial solar eclipse on September 21.