Moon calendar
Moon phases in December 2027
In December 2027 the full moon falls on 13 December at 16:10 UTC, and the new moon on 27 December. Every night of the month with its phase and how much of the Moon is lit, computed from the same engine the rest of the site runs on.
The exact moments
- First Quarter
- Full Moon
- Last Quarter
- New Moon
Times are UTC. A phase is a moment, not a night: the Moon is “full” at one instant, and looks full for a day either side of it. The live calendar works these out for your own clock and, if you let it, your own horizon.
Every night in December 2027
| Date | Phase | Lit |
|---|---|---|
| Wed 1 | Waxing Crescent | 8% |
| Thu 2 | Waxing Crescent | 14% |
| Fri 3 | Waxing Crescent | 22% |
| Sat 4 | Waxing Crescent | 30% |
| Sun 5 | Waxing Crescent | 39% |
| Mon 6 | First Quarter First Quarter 05:23 UTC | 48% |
| Tue 7 | First Quarter | 58% |
| Wed 8 | Waxing Gibbous | 67% |
| Thu 9 | Waxing Gibbous | 76% |
| Fri 10 | Waxing Gibbous | 84% |
| Sat 11 | Waxing Gibbous | 91% |
| Sun 12 | Waxing Gibbous | 96% |
| Mon 13 | Full Moon Full Moon 16:10 UTC | 99% |
| Tue 14 | Full Moon | 100% |
| Wed 15 | Waning Gibbous | 98% |
| Thu 16 | Waning Gibbous | 93% |
| Fri 17 | Waning Gibbous | 85% |
| Sat 18 | Waning Gibbous | 76% |
| Sun 19 | Waning Gibbous | 66% |
| Mon 20 | Last Quarter Last Quarter 09:12 UTC | 54% |
| Tue 21 | Last Quarter | 43% |
| Wed 22 | Waning Crescent | 33% |
| Thu 23 | Waning Crescent | 23% |
| Fri 24 | Waning Crescent | 15% |
| Sat 25 | Waning Crescent | 8% |
| Sun 26 | Waning Crescent | 3% |
| Mon 27 | New Moon New Moon 20:13 UTC | 1% |
| Tue 28 | New Moon | 0% |
| Wed 29 | Waxing Crescent | 1% |
| Thu 30 | Waxing Crescent | 4% |
| Fri 31 | Waxing Crescent | 9% |
Illumination is taken at 00:00 UTC on each date. It changes by a percent or two over a day, which is why the site’s own nightly card computes it for the evening you are actually standing in.
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2027
December in other years