Full Moon
The December full moon is exact on Thursday, 20 December 2029 at 22:48 UTC, with the Moon in Gemini and 100% of the disc lit.
A full moon in Gemini brings a conversation to the point where it cannot be postponed again: the reply you owe, the question asked twice, the thing everybody knows and nobody has said. With a Sagittarius Sun opposite, the risk is arguing the principle instead of settling the detail. Write it down before you say it.
| Month | Date | Sign |
|---|---|---|
| January | 30 January 2029 | Leo |
| February | 28 February 2029 | Virgo |
| March | 30 March 2029 | Libra |
| April | 28 April 2029 | Scorpio |
| May | 27 May 2029 | Sagittarius |
| June | 26 June 2029 | Capricorn |
| July | 25 July 2029 | Aquarius |
| August | 24 August 2029 | Pisces |
| September | 22 September 2029 | Pisces |
| October | 22 October 2029 | Aries |
| November | 21 November 2029 | Taurus |
| December (this page) | 20 December 2029 | Gemini |
Dates are Universal Time (UT). A station close to midnight can fall on the previous day in the Americas and on the next day in Europe.
Thursday 20 December 2029, at 22:48 UTC. That is the instant the Moon stands opposite the Sun: 100% of the disc is lit and the Moon is in Gemini. The instant is the same everywhere — only the clock reading differs.
Gemini, because at the moment of a full moon the Moon sits opposite the Sun and takes the facing sign. It advances by roughly one sign a month, so no two consecutive full moons repeat it.
22:48 UTC is Universal Time. Take five hours off for New York, add one or two for Madrid, add ten or eleven for Sydney. When the instant falls near midnight your local date lands a day either side of 20 December 2029.
19 January 2030, in Cancer. Two full moons are 29 or 30 days apart, so the next one normally falls in the following calendar month; the table above lists every full moon of 2029.
Finish rather than begin: settle the debt, return what you borrowed, send the thing sitting in drafts. The disc reads full to the eye for about a day either side of 22:48 UTC on 20 December 2029, and practice allows that whole window. Starting things belongs to the new moon a fortnight later.