New Moon
September 7, 2021
12:52 AM UTC UTC in Virgo
New Moon in VirgoLunation Calendar
Moon Phases September 2021: New Moon, Full Moon & Signs
Moon phases for September 2021 with calculated UTC times and zodiac signs. New Moon: September 7, 2021 at 12:52 AM UTC in Virgo. Full Moon: September 20, 2021 at 11:55 PM UTC in Pisces. The month view below also tracks Moon sign ingresses and local-time conversions.
Key Dates
New Moon and Full Moon in September 2021
Full Moon
September 20, 2021
11:55 PM UTC UTC in Pisces
Full Moon in PiscesCalculation Basis
Hermetikon calculates these lunar timings from its astronomy engine and stores the canonical moments in UTC. They are Hermetikon reference timings, not Swiss Ephemeris output; local times are derived from the UTC moment.
Local personalization
Local timing for the September 2021 moon calendar
The calendar stays canonical in UTC for search, citations, and stable reference. Apply your own coordinates here to convert featured moments into local time and add local ascendant and planetary-hour context.
Current mode
No local coordinates applied yet.
Event times below render in your browser timezone: UTC.
Browser timezone
UTC
Local conversions update automatically in this browser.
Current moon
September 2021 lunar calendar
Use this panel to personalize the September 2021 calendar.
Ascendant
Apply a location
Local horizon from your coordinates.
Planetary hour
Apply a location
Times appear after a location is applied.
Featured local timings
New Moon in Virgo
Sep 7, 2021, 12:52 AM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
First Quarter in Sagittarius
Sep 13, 2021, 8:39 PM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
Full Moon in Pisces
Sep 20, 2021, 11:55 PM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
Last Quarter in Cancer
Sep 29, 2021, 1:57 AM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
Lunar Phase Events
New Moon
in VirgoDateSeptember 7, 2021
Time (UTC)12:52 AM UTC
Local: Sep 7, 2021, 12:52 AM UTC
SignVirgo
The Moon conjoins the Sun, becoming invisible and combust. Classical doctrine regards this as the weakest lunar condition - the Moon is without light, applying to the Sun, and incapable of reflecting its rays.
New Moon in VirgoFirst Quarter
in SagittariusDateSeptember 13, 2021
Time (UTC)08:39 PM UTC
Local: Sep 13, 2021, 8:39 PM UTC
SignSagittarius
The Moon stands in square (quartile) to the Sun, having completed one quarter of its synodic cycle. Classical doctrine marks this as a moment of tension, decision, and action - the Moon's will presses against the solar principle.
First Quarter in SagittariusFull Moon
in PiscesDateSeptember 20, 2021
Time (UTC)11:55 PM UTC
Local: Sep 20, 2021, 11:55 PM UTC
SignPisces
The Moon stands in opposition to the Sun, achieving maximum illumination. Classical doctrine treats the Full Moon as a peak of lunar expression - the Moon is fully lit, powerful, and separated from the Sun by the widest arc.
Full Moon in PiscesLast Quarter
in CancerDateSeptember 29, 2021
Time (UTC)01:57 AM UTC
Local: Sep 29, 2021, 1:57 AM UTC
SignCancer
The Moon stands in its third square to the Sun, now waning and decreasing in light. Classical doctrine marks this as a moment of release, clearing, and dissolution as the cycle moves toward its end.
Last Quarter in CancerDaily Moon Lookup - September 2021
Each row uses a noon UTC reference for the daily phase and Moon sign. Major lunations and sign ingresses keep their calculated UTC moments.
| Date | Phase | Moon Sign | Calculated Events |
|---|---|---|---|
| September 1 | Last Quarter30% illuminated | Cancernoon UTC reference | |
| September 2 | Last Quarter21% illuminated | Cancernoon UTC reference | No major lunation or sign ingress. |
| September 3 | Waning Crescent14% illuminated | Cancernoon UTC reference | |
| September 4 | Waning Crescent7% illuminated | Leonoon UTC reference | No major lunation or sign ingress. |
| September 5 | Waning Crescent3% illuminated | Leonoon UTC reference | |
| September 6 | Waning Crescent0% illuminated | Virgonoon UTC reference | No major lunation or sign ingress. |
| September 7 | New Moon0% illuminated | Virgonoon UTC reference | |
| September 8 | New Moon3% illuminated | Libranoon UTC reference | |
| September 9 | New Moon8% illuminated | Libranoon UTC reference | No major lunation or sign ingress. |
| September 10 | Waxing Crescent15% illuminated | Scorpionoon UTC reference | |
| September 11 | Waxing Crescent24% illuminated | Scorpionoon UTC reference | No major lunation or sign ingress. |
| September 12 | Waxing Crescent35% illuminated | Sagittariusnoon UTC reference | |
| September 13 | Waxing Crescent46% illuminated | Sagittariusnoon UTC reference | |
| September 14 | First Quarter57% illuminated | Capricornnoon UTC reference | |
| September 15 | First Quarter68% illuminated | Capricornnoon UTC reference | No major lunation or sign ingress. |
| September 16 | First Quarter78% illuminated | Capricornnoon UTC reference | |
| September 17 | Waxing Gibbous87% illuminated | Aquariusnoon UTC reference | No major lunation or sign ingress. |
| September 18 | Waxing Gibbous93% illuminated | Aquariusnoon UTC reference | |
| September 19 | Waxing Gibbous98% illuminated | Piscesnoon UTC reference | No major lunation or sign ingress. |
| September 20 | Waxing Gibbous100% illuminated | Piscesnoon UTC reference | |
| September 21 | Full Moon100% illuminated | Ariesnoon UTC reference | |
| September 22 | Full Moon98% illuminated | Ariesnoon UTC reference | No major lunation or sign ingress. |
| September 23 | Full Moon94% illuminated | Ariesnoon UTC reference | |
| September 24 | Full Moon88% illuminated | Taurusnoon UTC reference | No major lunation or sign ingress. |
| September 25 | Waning Gibbous81% illuminated | Taurusnoon UTC reference | No major lunation or sign ingress. |
| September 26 | Waning Gibbous73% illuminated | Gemininoon UTC reference | |
| September 27 | Waning Gibbous65% illuminated | Gemininoon UTC reference | No major lunation or sign ingress. |
| September 28 | Waning Gibbous56% illuminated | Gemininoon UTC reference | |
| September 29 | Last Quarter46% illuminated | Cancernoon UTC reference | |
| September 30 | Last Quarter36% illuminated | Cancernoon UTC reference | No major lunation or sign ingress. |
Month View Calendar - September 2021
Each day shows the Moon sign at noon UTC, any major phase event, and calculated UTC Moon sign ingresses. Use the personalization panel above for local-time conversion and location-specific context.
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Moon Sign Runs
A compact view of how the Moon moves through the zodiac across the month.
Moon Sign Ingresses
These are the calculated UTC sign changes for the Moon in September 2021, with local-time conversion shown below each ingress.
September 1, 2021 at 05:25 AM UTC UTC
Local time: Sep 1, 2021, 5:25 AM UTC
The Moon leaves Gemini and enters Cancer.
September 3, 2021 at 03:58 PM UTC UTC
Local time: Sep 3, 2021, 3:58 PM UTC
The Moon leaves Cancer and enters Leo.
September 5, 2021 at 11:05 PM UTC UTC
Local time: Sep 5, 2021, 11:05 PM UTC
The Moon leaves Leo and enters Virgo.
September 8, 2021 at 03:20 AM UTC UTC
Local time: Sep 8, 2021, 3:20 AM UTC
The Moon leaves Virgo and enters Libra.
September 10, 2021 at 06:04 AM UTC UTC
Local time: Sep 10, 2021, 6:04 AM UTC
The Moon leaves Libra and enters Scorpio.
September 12, 2021 at 08:34 AM UTC UTC
Local time: Sep 12, 2021, 8:34 AM UTC
The Moon leaves Scorpio and enters Sagittarius.
September 14, 2021 at 11:34 AM UTC UTC
Local time: Sep 14, 2021, 11:34 AM UTC
The Moon leaves Sagittarius and enters Capricorn.
September 16, 2021 at 03:23 PM UTC UTC
Local time: Sep 16, 2021, 3:23 PM UTC
The Moon leaves Capricorn and enters Aquarius.
September 18, 2021 at 08:22 PM UTC UTC
Local time: Sep 18, 2021, 8:22 PM UTC
The Moon leaves Aquarius and enters Pisces.
September 21, 2021 at 03:12 AM UTC UTC
Local time: Sep 21, 2021, 3:12 AM UTC
The Moon leaves Pisces and enters Aries.
September 23, 2021 at 12:37 PM UTC UTC
Local time: Sep 23, 2021, 12:37 PM UTC
The Moon leaves Aries and enters Taurus.
September 26, 2021 at 12:36 AM UTC UTC
Local time: Sep 26, 2021, 12:36 AM UTC
The Moon leaves Taurus and enters Gemini.
September 28, 2021 at 01:34 PM UTC UTC
Local time: Sep 28, 2021, 1:34 PM UTC
The Moon leaves Gemini and enters Cancer.
Classical Sources on Monthly Lunations
These citations explain why classical astrologers tracked monthly new and full moons, quarterly turns, and conjunction-based month judgments.
Tetrabiblos
Claudius Ptolemy
150
"The second part of the consideration relates to each month, and requires a similar observation of the new or full Moon first taking place on the Sun’s progress through each sign: and it must be remembered, that, if a new Moon should have happened at a period nearest to the Sun’s transit over the past tropical or equinoctial point, the new Moon also in each succeeding sign, until the commencement of the next quarter, are to be observed; but, if a full Moon should have so happened, then similar observation is to be made of each subsequent full Moon. The angles, also, must be duly attended to, as well as the planets and stars ruling in both the places [104] ; and especially the nearest phases, applications, and separations of the planets, and their properties. The peculiar qualities of the two places, and the winds, liable to be excited by the planets themselves and by those parts of the signs in which they may be situated, are likewise to be considered; and also that particular wind, which is indicated by the direction of the Moon’s ecliptical latitude. By the aid of these observations, and by weighing and comparing the existing vigour of each of the several properties and qualities, the general constitution of the atmosphere during each month may be predicted"
CHAPTER XIII MODE OF CONSIDERATION FOR PARTICULAR CONSTITUTIONS OF THE ATMOSPHEREOpen in Reader
Tetrabiblos
Claudius Ptolemy
150
"The third part of this consideration appertains to significations applying more minutely, and points out their force or weakness. In this case, the partile configurations of the Sun and Moon, at the intermediate quarters, as well as at the new or full Moon, are to be attentively regarded; since there is a certain variation in the constitution of the atmosphere, which usually commences about three days before, and sometimes, also, about three days after the Moon has equated her course to the Sun"
CHAPTER XIII MODE OF CONSIDERATION FOR PARTICULAR CONSTITUTIONS OF THE ATMOSPHEREOpen in Reader
Clavis Astrologiae Elimata
Henry Coley
1669
"When you shall make the minute of a ☌ your Basis or Radix, you may give judgment of the change of Weather in that moneth; for your judgment shall be framed according to the principal Dominator of the Angle of every Figure, for that Planet overcomes in the Nature of the Aire; assuming together with these things the Quality of the present time, viz. the season of the year"
Page 280Open in Reader
Books behind the September 2021 moon calendar
Open the cited books and chapters behind the monthly lunation calendar.
Moon Phases September 2021 - FAQ
When is the full moon in September 2021?
The full moon in September 2021 is on September 20, 2021 at 11:55 PM UTC UTC, in Pisces. The page also converts that moment into the visitor's local timezone.
When is the new moon in September 2021?
The new moon in September 2021 is on September 7, 2021 at 12:52 AM UTC UTC, in Virgo. The page also converts that moment into the visitor's local timezone.
How many moon phases are there in September 2021?
There are 4 major lunar phase events in September 2021: New Moon, First Quarter, Full Moon, Last Quarter.