Today's exact layer
Moon calendarDecember 2021
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
Lunar focus
December 2021 moon map
Open today's exact Moon result when you want local visibility, the current phase, and a guided next step.
Open Moon Phase Today
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.
Dec 1
Waning Crescent
14% lit, Moon in Gemini 9 deg.
Release window
Clarify, complete, simplify, or let go.
Sign changes this month: Dec 1 Gemini, Dec 22 Cancer.
DAILY LUNAR DATA
December 2021 moon phases
Each day is computed from astronomical Moon phase angle and lunar longitude, then summarized into a scan-friendly calendar.
Day 1
Waning Crescent
14% lit
Gemini 9 deg
Age 25.9d
Day 2
Waning Crescent
7% lit
Gemini 10 deg
Age 27d
Day 3
New Moon
2% lit
Gemini 11 deg
Age 28.2d
Day 4
New Moon
0% lit
Gemini 12 deg
Age 29.3d
Day 5
New Moon
1% lit
Gemini 13 deg
Age 1d
Day 6
Waxing Crescent
5% lit
Gemini 14 deg
Age 2.1d
Day 7
Waxing Crescent
12% lit
Gemini 15 deg
Age 3.3d
Day 8
Waxing Crescent
20% lit
Gemini 16 deg
Age 4.4d
Day 9
Waxing Crescent
30% lit
Gemini 17 deg
Age 5.5d
Day 10
First Quarter
41% lit
Gemini 18 deg
Age 6.5d
Day 11
First Quarter
51% lit
Gemini 19 deg
Age 7.5d
Day 12
First Quarter
61% lit
Gemini 20 deg
Age 8.4d
Day 13
Waxing Gibbous
71% lit
Gemini 21 deg
Age 9.4d
Day 14
Waxing Gibbous
79% lit
Gemini 22 deg
Age 10.3d
Day 15
Waxing Gibbous
86% lit
Gemini 23 deg
Age 11.2d
Day 16
Waxing Gibbous
92% lit
Gemini 24 deg
Age 12.1d
Day 17
Full Moon
96% lit
Gemini 25 deg
Age 13d
Day 18
Full Moon
99% lit
Gemini 26 deg
Age 13.9d
Day 19
Full Moon
100% lit
Gemini 27 deg
Age 14.7d
Day 20
Full Moon
99% lit
Gemini 29 deg
Age 15.6d
Day 21
Full Moon
96% lit
Gemini 30 deg
Age 16.5d
Day 22
Waning Gibbous
92% lit
Cancer 1 deg
Age 17.4d
Day 23
Waning Gibbous
86% lit
Cancer 2 deg
Age 18.4d
Day 24
Waning Gibbous
79% lit
Cancer 3 deg
Age 19.3d
Day 25
Waning Gibbous
70% lit
Cancer 4 deg
Age 20.2d
Day 26
Last Quarter
60% lit
Cancer 5 deg
Age 21.2d
Day 27
Last Quarter
49% lit
Cancer 6 deg
Age 22.2d
Day 28
Last Quarter
39% lit
Cancer 7 deg
Age 23.2d
Day 29
Waning Crescent
28% lit
Cancer 8 deg
Age 24.3d
Day 30
Waning Crescent
18% lit
Cancer 9 deg
Age 25.4d
Day 31
Waning Crescent
10% lit
Cancer 10 deg
Age 26.5d