December 10 zodiac sign
December 10 puts the Sun at about 18° Sagittarius, near the far side of the second decan, where Mars and Jupiter together give a strong appetite for risk and little interest in sitting still.
Sun signSagittarius
- Sun at 16°–20° Sagittarius
- 2nd decan · Mars
December 10 in profile
Eighteen degrees still counts as the middle of the sign, so the classic Sagittarian traits are in full view: candour, restlessness, faith that things will turn out well. The second decan’s Aries sub-sign brings Mars, and Mars prefers action to commentary. As the decan draws to a close, the mix feels experienced rather than reckless. A December 10 Sagittarius has usually learned which risks are worth it by trying a few that were not.
Rest takes effort. Sitting on a sofa for a whole afternoon makes them twitchy, yet they need downtime more than they admit. What works is rest with a little motion in it: swimming slow lengths, fishing, a train ride with a window seat. They come back from a quiet weekend surprised at how much better they sleep, and how much kinder they are to everyone.
Courage is their default. They say yes to the job overseas, the solo trip, the speech at a friend’s wedding with an hour’s notice. Fear exists, but it shows up as excitement. They tend to trust their reflexes in a crisis, and those reflexes are often good. Weighing the downside on paper before agreeing takes five minutes, leaves the boldness intact and removes most of the avoidable regrets.
Sagittarius all day
In every year from 1930 to 2040 the Sun was in Sagittarius for the whole of December 10, in every time zone. This is not a cusp birthday: the nearest changes of sign fall around November 23 and December 21.
Your Moon sign depends on the year
The Sun is in the same place on December 10 every year; the Moon is not. It changes sign every two and a half days, so people who share this birthday can have any of the twelve Moon signs. Here is where it was on December 10 in recent years, from 00:00 to 23:59 UTC (an arrow means it changed sign during the day).
- 2017Virgo
- 2018Capricorn → Aquarius
- 2019Taurus → Gemini
- 2020Libra
- 2021Pisces
- 2022Cancer
- 2023Scorpio
- 2024Aries
- 2025Leo → Virgo
- 2026Sagittarius → Capricorn
Compatible signs for a Sagittarius
Sun-sign compatibility starts from the element. Sagittarius gets on most easily with its own element and with the two sextile signs, and feels the strongest pull from its opposite. For a December 10 birthday, in the Aries decan, Aries is a natural match. The full charts decide how a real pairing feels.
A gift for a December 10 birthday
A first lesson in sailing, paragliding or open-water swimming, booked with a qualified instructor so the adventure comes with good guidance.
Asked about December 10
What zodiac sign is December 10?
December 10 is Sagittarius in every year: the Sun is at about 16°–20° Sagittarius that day, in the sign’s 2nd decan.
Is December 10 a cusp birthday?
No. The Sun is well inside Sagittarius on December 10. The cusp days, when the Sun changes sign, fall around November 23 and December 21. Astrology has no blended cusp signs anyway: at any moment the Sun is in one sign.
What decan is December 10?
December 10 falls in the 2nd decan of Sagittarius. In the triplicity system we use, that decan belongs to Aries and its ruler Mars, which colours the Sagittarius Sun with a little of Aries.
Your birthday is only the Sun
A December 10 birthday tells you where the Sun was. The Moon, the Rising sign and eight more planets each sit somewhere of their own, and they depend on the year, the hour and the place. The free calculator shows all of them.