The figures
At 16:49 UTC on Sunday, December 31, 2028 the Moon reaches 10°33' Cancer with the Sun opposite at 10°33' Capricorn. The distance is 377,604 km, 6,796 km closer than the 384,400 km average — near enough to the mean that the apparent size is unremarkable. The degree, 10°33' Cancer, places it in the second decan of Cancer, on the axis that runs across to Capricorn. It is the second full Moon inside December 2028, which is what the calendar definition of a blue moon means — a quirk of the lunar month being shorter than the calendar one. This one is also a total lunar eclipse, so the Moon is within range of a node at 10°33' Cancer rather than merely opposite the Sun. It is the 25th of the 25 lunations dated for 2028, and the cycle it belongs to is set out in what a lunation is.
Exact time where you are
That instant — 16:49 UTC on December 31, 2028 — is one moment worldwide, and only the clock reading changes, with summer time applied wherever the local rule puts the date inside it.
| City | Local time | Local date |
|---|---|---|
| New York | 11:49 | 31 December |
| Los Angeles | 08:49 | 31 December |
| London | 16:49 | 31 December |
| Delhi | 22:19 | 31 December |
| Sydney | 03:49 the next day | 1 January |
| Istanbul | 19:49 | 31 December |
Why it is called the Blue Moon
The Blue Moon is the traditional North American and European name for the full Moon of December, and in 2028 it falls on December 31, 2028 at 10°33' Cancer. The older alternative is the Cold Moon. Those names follow the calendar month rather than the zodiac, which is why the 2028 one lands in Cancer at 10°33' Cancer while other years put it elsewhere.
Which house it falls in for your sign
Counted from each sign as the first house, this full moon at 10°33' Cancer falls here:
| Sign | House | What that house covers |
|---|---|---|
| Aries | 4th house | home, family, roots and private ground |
| Taurus | 3rd house | conversation, short trips, siblings and daily information |
| Gemini | 2nd house | money, possessions and what you consider yours |
| Cancer | 1st house | your own bearing, appearance and the first move |
| Leo | 12th house | rest, solitude, what is behind you and what runs unattended |
| Virgo | 11th house | friends, groups, networks and what you are aiming at |
| Libra | 10th house | career, public standing and what you are known for |
| Scorpio | 9th house | distance, study, belief, travel and the long view |
| Sagittarius | 8th house | shared money, debt, intimacy and what is not said out loud |
| Capricorn | 7th house | partners, opponents and anyone you deal with one to one |
| Aquarius | 6th house | work, routine, health and the small maintenance of a life |
| Pisces | 5th house | play, romance, children and anything you make for its own sake |
A full moon in Cancer
Anything within a couple of degrees of 10°33' Cancer in a natal chart is contacted directly by this one, and so is anything near the same degree of Capricorn, Libra or Aries, since those are the other three corners of the same cross.
What the full moon of December 31, 2028 marks is a position rather than an event: 10°33' Cancer, in the second decan, with the Sun at 10°33' Capricorn. The house it occupies in your own chart matters more than the sign name, and the table above gives that house for 10°33' Cancer, sign by sign.
Where this one sits in the cycle
The lunation before this one fell 15 days earlier and the next follows 14 days after December 31, 2028.
- Before it: the new moon of December 16, 2028
- After it: the new moon of January 14, 2029
- The last full moon in Cancer: January 12, 2028
Questions people ask about this
What time is the full moon on December 31, 2028?
16:49 UTC on December 31, 2028; the table above converts that single instant to six local clocks.
What sign is this full moon in?
10°33' Cancer — the second decan. The chart reading for December 31, 2028 works from that degree rather than from the sign name on its own.
Is this a supermoon?
No: 377,604 km, which is 6,796 km off the average and not near enough to perigee to qualify.
Does a full moon cause anything?
No. On December 31, 2028 the Moon simply reaches 10°33' Cancer; what the chart gives is a position and a house, not an event.