Moon calendar
Moon phases in December 2026
In December 2026 the full moon falls on 24 December at 01:29 UTC, and the new moon on 9 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
- Last Quarter
- New Moon
- First Quarter
- Full Moon
- Last Quarter
December 2026 carries two last quarters. A lunar month is 29.53 days, so a long month occasionally holds the same phase twice.
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 2026
| Date | Phase | Lit |
|---|---|---|
| Tue 1 | Last Quarter Last Quarter 06:10 UTC | 53% |
| Wed 2 | Last Quarter | 42% |
| Thu 3 | Waning Crescent | 32% |
| Fri 4 | Waning Crescent | 23% |
| Sat 5 | Waning Crescent | 15% |
| Sun 6 | Waning Crescent | 9% |
| Mon 7 | Waning Crescent | 4% |
| Tue 8 | New Moon | 1% |
| Wed 9 | New Moon New Moon 00:53 UTC | 0% |
| Thu 10 | New Moon | 1% |
| Fri 11 | Waxing Crescent | 4% |
| Sat 12 | Waxing Crescent | 8% |
| Sun 13 | Waxing Crescent | 13% |
| Mon 14 | Waxing Crescent | 21% |
| Tue 15 | Waxing Crescent | 29% |
| Wed 16 | Waxing Crescent | 38% |
| Thu 17 | First Quarter First Quarter 05:43 UTC | 48% |
| Fri 18 | First Quarter | 58% |
| Sat 19 | Waxing Gibbous | 68% |
| Sun 20 | Waxing Gibbous | 78% |
| Mon 21 | Waxing Gibbous | 87% |
| Tue 22 | Waxing Gibbous | 94% |
| Wed 23 | Waxing Gibbous | 98% |
| Thu 24 | Full Moon Full Moon 01:29 UTC | 100% |
| Fri 25 | Waning Gibbous | 99% |
| Sat 26 | Waning Gibbous | 94% |
| Sun 27 | Waning Gibbous | 88% |
| Mon 28 | Waning Gibbous | 79% |
| Tue 29 | Waning Gibbous | 69% |
| Wed 30 | Last Quarter Last Quarter 19:01 UTC | 58% |
| Thu 31 | Last Quarter | 48% |
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.
Jump to another month
2026
December in other years