December 2026 Moon Phase Calendar

Updated · Daily moon data sampled at 8:00 p.m. Eastern Time (UTC shown where relevant)

The daily phase and illumination below are sampled at 8:00 p.m. Eastern Time. Principal phases are exact astronomical instants. Moonrise is for New York City and may occur on a different local date elsewhere.

December 2026 Moon Phase Calendar — Gregorian

Gregorian dates: December 1, 2026 – December 31, 2026.

Switching keeps the reference date, December 1, 2026. Weekday headings follow the Gregorian calendar. 13-month dates appear below each day. The detail tables below keep their stated Gregorian date ranges.

Moon phases for December 2026, Eastern Time. 13 month calendar date shown in the center of each day.
SundayMondayTuesdayWednesdayThursdayFridaySaturday
Last Quarter, 41.7% illuminated41.7%Nov 27 Last Quarter 1:08 a.m. EST Last Quarter, 31.6% illuminated31.6%Nov 28 Waning Crescent, 22.5% illuminated22.5%Dec 1 Waning Crescent, 14.7% illuminated14.7%Dec 2 Waning Crescent, 8.4% illuminated8.4%Dec 3
Waning Crescent, 3.9% illuminated3.9%Dec 4 New Moon, 1.1% illuminated1.1%Dec 5 New Moon, 0.2% illuminated0.2%Dec 6 New Moon 7:51 p.m. EST New Moon, 1% illuminated1%Dec 7 New Moon, 3.7% illuminated3.7%Dec 8 Waxing Crescent, 7.9% illuminated7.9%Dec 9 Waxing Crescent, 13.7% illuminated13.7%Dec 10
Waxing Crescent, 20.8% illuminated20.8%Dec 11 Waxing Crescent, 29.1% illuminated29.1%Dec 12 First Quarter, 38.3% illuminated38.3%Dec 13 First Quarter, 48.1% illuminated48.1%Dec 14 First Quarter, 58.4% illuminated58.4%Dec 15 First Quarter 12:42 a.m. EST Waxing Gibbous, 68.6% illuminated68.6%Dec 16 Waxing Gibbous, 78.3% illuminated78.3%Dec 17
Waxing Gibbous, 86.9% illuminated86.9%Dec 18 Waxing Gibbous, 93.8% illuminated93.8%Dec 19 Full Moon, 98.2% illuminated98.2%Dec 20 Full Moon, 99.9% illuminated99.9%Dec 21 Full Moon 8:28 p.m. EST Full Moon, 98.5% illuminated98.5%Dec 22 Waning Gibbous, 94.1% illuminated94.1%Dec 23 Waning Gibbous, 87.2% illuminated87.2%Dec 24
Waning Gibbous, 78.5% illuminated78.5%Dec 25 Waning Gibbous, 68.6% illuminated68.6%Dec 26 Last Quarter, 58% illuminated58%Dec 27 Last Quarter, 47.5% illuminated47.5%Dec 28 Last Quarter 1:59 p.m. EST Last Quarter, 37.4% illuminated37.4%Year Day

Daily phase names group the cycle into eight broad phase sectors, using progress between exact astronomical events. They describe the 8 p.m. Eastern sample, not the instant of a new moon, quarter moon, or full moon. The tables list those exact principal-phase instants separately.

December 2026 Moon Phases — Exact Times

Principal lunar phases in December 2026, with Eastern and UTC civil dates
PhaseDateTime (ET)Time (UTC)13 month date
Last Quarter1:08 a.m. EST
6:08 a.m. UTC		November 27, 2026
New Moon7:51 p.m. EST
12:51 a.m. UTC		December 6, 2026
First Quarter12:42 a.m. EST
5:42 a.m. UTC		December 15, 2026
Full Moon8:28 p.m. EST
1:28 a.m. UTC		December 21, 2026
Last Quarter1:59 p.m. EST
6:59 p.m. UTC		December 28, 2026

Special events and calculation notes

  • : Supermoon (geocentric distance <= 360,000 km)

Eclipse classifications are from NASA GSFC. On this site, “supermoon” means a full moon with a computed geocentric distance of 360,000 km or less.

Daily Moon Phase, Illumination, and Moonrise

Daily lunar conditions in December 2026; phase and illumination sampled at 8:00 p.m. Eastern
DatePhase at 8 p.m. ETIlluminationNYC moonrise (ET / UTC)13 month date
Last Quarter, 41.7% illuminatedLast Quarter41.7%No moonrise on this Eastern calendar dateNovember 27, 2026
Last Quarter, 31.6% illuminatedLast Quarter31.6%, 12:39 a.m. EST
, 5:39 a.m. UTC		November 28, 2026
Waning Crescent, 22.5% illuminatedWaning Crescent22.5%, 1:45 a.m. EST
, 6:45 a.m. UTC		December 1, 2026
Waning Crescent, 14.7% illuminatedWaning Crescent14.7%, 2:51 a.m. EST
, 7:51 a.m. UTC		December 2, 2026
Waning Crescent, 8.4% illuminatedWaning Crescent8.4%, 3:56 a.m. EST
, 8:56 a.m. UTC		December 3, 2026
Waning Crescent, 3.9% illuminatedWaning Crescent3.9%, 5:01 a.m. EST
, 10:01 a.m. UTC		December 4, 2026
New Moon, 1.1% illuminatedNew Moon1.1%, 6:05 a.m. EST
, 11:05 a.m. UTC		December 5, 2026
New Moon, 0.2% illuminatedNew Moon0.2%, 7:07 a.m. EST
, 12:07 p.m. UTC		December 6, 2026
New Moon, 1% illuminatedNew Moon1%, 8:02 a.m. EST
, 1:02 p.m. UTC		December 7, 2026
New Moon, 3.7% illuminatedNew Moon3.7%, 8:51 a.m. EST
, 1:51 p.m. UTC		December 8, 2026
Waxing Crescent, 7.9% illuminatedWaxing Crescent7.9%, 9:31 a.m. EST
, 2:31 p.m. UTC		December 9, 2026
Waxing Crescent, 13.7% illuminatedWaxing Crescent13.7%, 10:05 a.m. EST
, 3:05 p.m. UTC		December 10, 2026
Waxing Crescent, 20.8% illuminatedWaxing Crescent20.8%, 10:33 a.m. EST
, 3:33 p.m. UTC		December 11, 2026
Waxing Crescent, 29.1% illuminatedWaxing Crescent29.1%, 10:57 a.m. EST
, 3:57 p.m. UTC		December 12, 2026
First Quarter, 38.3% illuminatedFirst Quarter38.3%, 11:19 a.m. EST
, 4:19 p.m. UTC		December 13, 2026
First Quarter, 48.1% illuminatedFirst Quarter48.1%, 11:40 a.m. EST
, 4:40 p.m. UTC		December 14, 2026
First Quarter, 58.4% illuminatedFirst Quarter58.4%, 12:01 p.m. EST
, 5:01 p.m. UTC		December 15, 2026
Waxing Gibbous, 68.6% illuminatedWaxing Gibbous68.6%, 12:24 p.m. EST
, 5:24 p.m. UTC		December 16, 2026
Waxing Gibbous, 78.3% illuminatedWaxing Gibbous78.3%, 12:51 p.m. EST
, 5:51 p.m. UTC		December 17, 2026
Waxing Gibbous, 86.9% illuminatedWaxing Gibbous86.9%, 1:23 p.m. EST
, 6:23 p.m. UTC		December 18, 2026
Waxing Gibbous, 93.8% illuminatedWaxing Gibbous93.8%, 2:03 p.m. EST
, 7:03 p.m. UTC		December 19, 2026
Full Moon, 98.2% illuminatedFull Moon98.2%, 2:56 p.m. EST
, 7:56 p.m. UTC		December 20, 2026
Full Moon, 99.9% illuminatedFull Moon99.9%, 4:02 p.m. EST
, 9:02 p.m. UTC		December 21, 2026
Full Moon, 98.5% illuminatedFull Moon98.5%, 5:18 p.m. EST
, 10:18 p.m. UTC		December 22, 2026
Waning Gibbous, 94.1% illuminatedWaning Gibbous94.1%, 6:39 p.m. EST
, 11:39 p.m. UTC		December 23, 2026
Waning Gibbous, 87.2% illuminatedWaning Gibbous87.2%, 7:59 p.m. EST
, 12:59 a.m. UTC		December 24, 2026
Waning Gibbous, 78.5% illuminatedWaning Gibbous78.5%, 9:15 p.m. EST
, 2:15 a.m. UTC		December 25, 2026
Waning Gibbous, 68.6% illuminatedWaning Gibbous68.6%, 10:27 p.m. EST
, 3:27 a.m. UTC		December 26, 2026
Last Quarter, 58% illuminatedLast Quarter58%, 11:36 p.m. EST
, 4:36 a.m. UTC		December 27, 2026
Last Quarter, 47.5% illuminatedLast Quarter47.5%No moonrise on this Eastern calendar dateDecember 28, 2026
Last Quarter, 37.4% illuminatedLast Quarter37.4%, 12:43 a.m. EST
, 5:43 a.m. UTC		Year Day 2026

“No moonrise” means no rise occurs during that midnight-to-midnight Eastern calendar date at the New York City observer location; it does not mean the moon never rises.