Today's exact layer
Moon calendarSeptember 2031
Monthly Moon phase calendar
Follow each day's phase, illumination, Moon sign, moon age, and cycle progress. Use it to time starts, refinements, releases, and rest.
Lunar calendar
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September 2031 moon map
Open today's exact Moon result when you want local visibility, the current phase, and a guided next step.
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Moon timeline
Follow the month as a moving sky path
Switch between phase, Moon sign, and planning mode to see how the lunar month changes day by day.
Sep 1
Full Moon
100% lit, Moon in Pisces 9 deg.
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Sign changes this month: Sep 1 Pisces, Sep 24 Aries.
DAILY LUNAR DATA
September 2031 moon phases
Each day is computed from astronomical Moon phase angle and lunar longitude, then summarized into a scan-friendly calendar.
Day 1
Full Moon
100% lit
Pisces 9 deg
Age 14.5d
Day 2
Full Moon
99% lit
Pisces 10 deg
Age 15.6d
Day 3
Waning Gibbous
96% lit
Pisces 11 deg
Age 16.7d
Day 4
Waning Gibbous
90% lit
Pisces 12 deg
Age 17.8d
Day 5
Waning Gibbous
83% lit
Pisces 13 deg
Age 18.8d
Day 6
Waning Gibbous
74% lit
Pisces 14 deg
Age 19.8d
Day 7
Last Quarter
65% lit
Pisces 15 deg
Age 20.8d
Day 8
Last Quarter
55% lit
Pisces 15 deg
Age 21.7d
Day 9
Last Quarter
45% lit
Pisces 16 deg
Age 22.6d
Day 10
Last Quarter
36% lit
Pisces 17 deg
Age 23.5d
Day 11
Waning Crescent
27% lit
Pisces 18 deg
Age 24.4d
Day 12
Waning Crescent
19% lit
Pisces 19 deg
Age 25.3d
Day 13
Waning Crescent
12% lit
Pisces 20 deg
Age 26.2d
Day 14
Waning Crescent
7% lit
Pisces 21 deg
Age 27.1d
Day 15
New Moon
3% lit
Pisces 22 deg
Age 28d
Day 16
New Moon
1% lit
Pisces 23 deg
Age 28.9d
Day 17
New Moon
0% lit
Pisces 24 deg
Age 0.4d
Day 18
New Moon
2% lit
Pisces 25 deg
Age 1.3d
Day 19
Waxing Crescent
6% lit
Pisces 26 deg
Age 2.3d
Day 20
Waxing Crescent
12% lit
Pisces 27 deg
Age 3.3d
Day 21
Waxing Crescent
20% lit
Pisces 28 deg
Age 4.3d
Day 22
Waxing Crescent
29% lit
Pisces 29 deg
Age 5.4d
Day 23
First Quarter
40% lit
Pisces 30 deg
Age 6.4d
Day 24
First Quarter
51% lit
Aries 1 deg
Age 7.5d
Day 25
First Quarter
63% lit
Aries 2 deg
Age 8.6d
Day 26
Waxing Gibbous
74% lit
Aries 3 deg
Age 9.7d
Day 27
Waxing Gibbous
83% lit
Aries 4 deg
Age 10.8d
Day 28
Waxing Gibbous
91% lit
Aries 5 deg
Age 11.9d
Day 29
Full Moon
96% lit
Aries 6 deg
Age 13d
Day 30
Full Moon
99% lit
Aries 7 deg
Age 14.1d