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Moon Phases in September 2023

In September 2023, the Full Moon falls on September 29, 2023 and the New Moon on September 15, 2023. The First Quarter is on September 22, 2023, and the Last Quarter on September 7, 2023. Here is the complete lunar calendar for the month, all four quarter phases, and a direct link to every single day.

The full moon of September 2023 — or any other date — is available from Lumeries as a personalized poster with names and the date, as an instant download minutes after ordering (€9.90). Create a poster with your date →

Year overview 2023: every full moon and new moon →

Moon Phase Overview

Full MoonFull MoonSeptember 2999.9%
New MoonNew MoonSeptember 150.2%
First QuarterFirst QuarterSeptember 2248.1%
Last QuarterLast QuarterSeptember 745%

Lunar Calendar September 2023

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Tap any day to see the exact moon phase, moonrise, and a personalized poster for that date.

The Sky in September 2023

September 2023 brings the autumn shift to the Northern Hemisphere. Nights grow longer and clearer. The famous Harvest Moon and Hunter's Moon fall in this season — historically essential for farmers and hunters.

The full moon on September 29, 2023 traditionally bears the name "Harvest Moon". This name comes from old nature observations and makes the full moon in September 2023 especially significant.

Notable Days This Month

Autumn EquinoxSeptember 22

About the Moon Phases in September 2023

Every month, the Moon completes all eight phases — from New Moon through Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, to Waning Crescent. In September 2023, the Full Moon is on September 29, 2023 and the New Moon on September 15, 2023. The First Quarter is visible on September 22, 2023, the Last Quarter on September 7, 2023.

All moon phases for September 2023 are calculated astronomically using the SunCalc library. Times are referenced to Berlin (CET/CEST). Click any day in the calendar to see moonrise, zodiac sign, and a personalized moon poster for that exact date.

FAQ

When is the Full Moon in September 2023?
The Full Moon in September 2023 is on September 29, 2023. The Moon is 99.9% illuminated and sits opposite the Sun. The exact time and full astronomical data are on the daily detail page. Lumeries calculates full moon dates astronomically for every month between 1900 and 2100.
When is the New Moon in September 2023?
The New Moon in September 2023 is on September 15, 2023. On this day the Moon is between Earth and Sun and invisible to us — perfect conditions for stargazing thanks to the dark sky. Lumeries also calculates new moon dates for every month between 1900 and 2100.
How many moon phases are there in September 2023?
September 2023 has 4 primary phase events: Full Moon, New Moon, First Quarter, and Last Quarter. The Moon completes a full cycle every 29.5 days. The calendar above shows the exact phase for every single day.

Your Personalized Moon Poster

Pick a special day in September 2023 and create your unique moon poster — as a high-resolution image.

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