The December 2026 New Moon is on Tuesday, December 8. It will be the last new moon of 2026.
A new moon is the first lunar phase that happens about once a month or 29.53 days on average. The moon itself is not visible, though you may be able to “see” it because it blocks the visibility of the stars behind it.
Ready to dive a little deeper into the December New Moon of 2026? Learn more about the moon’s nicknames and other facts about it.
Get ready for 2026’s December new moon
The December New Moon is on Tuesday, December 8th. It will be the last new moon of the year.
The December 8 New Moon is the last new moon of Autumn as the last to occur after the Autumnal Equinox. Depending on the year, the new moon in December can either be the last new moon of Autumn or occur just after the start of Winter.
When is the new moon in December for 2026?
The peak of the December new moon is 7:52 PM EST on December 8. The moon will look fairly invisible the day before and after. The December 8 New Moon will be the new moon in Sagittarius.
Related: Learn more about the December New Moon in 2027.
Name for the December New Moon
In 2026, the December New Moon is called the New Cold Moon because it is start of the lunar cycle for the December full moon.
In other years, the new moon in December will start the January full moon cycle, and be called the New Wolf Moon.
Will there be a solar eclipse in December during the new moon?
No, there will not be a solar eclipse during the December new moon in 2026. The February new moon will have an Annular Solar Eclipse and there will be a Total Solar Eclipse with the August new moon.
Will there a new supermoon in December?
No, there will not be new supermoon in December. The 2026 super new moons will be during the April New Moon, May New Moon, June New Moon, July New Moon, and August New Moon.
A new supermoon is a new moon that nearly coincides with the closest point that the Moon comes to the Earth in its orbit, called perigee. While you cannot directly see a new moon, it may leave a larger-than usual empty space in the sky. There isn’t an official definition for how close the moon must be to the Earth to be considered a supermoon. Depending on the version you use, the moon needs to be approximately 360,000 kilometers from the Earth or closer.
Moon Phases in December 2026
Below are the four core moon phases that will occur in December, including the new moon, first quarter, full moon, and last quarter. The new moon will start the lunar cycle for the December Full Moon.
| Phase | Date & Time | Season |
|---|---|---|
| December Last Quarter | Tue, December 1, 1:09 a.m. EST | Autumn |
| December New Moon 2026 | Tue, December 8, 7:52 p.m. EST | Autumn |
| December First Quarter | Thu, December 17, 12:43 a.m. EST | Autumn |
| December Full Moon 2026 | Wed, December 23, 8:28 p.m. EST | Winter |
| December Last Quarter | Wed, December 30, 1:59 p.m. EST | Winter |
New Moons this Year in 2026
The December new moon is one of the twelve new moons this year. The others are
- New Moon in January 2026 was on Jan 18th
- New Moon in February 2026 was on Feb 17th
- New Moon in March 2026 is on March 18th
- New Moon in April 2026 is in on April 17th
- New Moon in May 2026 is in on May 16th
- New Moon in June 2026 is on June 14th
- New Moon in July 2026 is on July 14th
- New Moon in August 2026 is on Aug 12th
- New Moon in September 2026 is on Sept 10th
- New Moon in October 2026 is on Oct 10th
- New Moon in November 2026 is on Nov 9th
Sources
The dates and times provided by NASA are set to United States (USA) Eastern Time for states including New York and Florida, adjusted for Daylight Saving Time for part of the year. Since you may be in a different time zone, the exact dates may shift for your calendar.