Born on December 18

December 18 zodiac sign

If you were born on December 18, your Sun sign is Sagittarius.

The archer, aiming past the darkest days toward the light.

FireMutableJupiter

On December 18 the Sun stands between 25° and 27° Sagittarius, in the 3rd decan of the sign.

Across all the years 1930 to 2050, the Sun was in Sagittarius for the whole of December 18, wherever in the world you were born.

Find your exact Sun degree

Add your birth year, and your time and place if you know them. Hali will work out exactly where the Sun stood when you arrived, and when it next returns there.

Birth time

Your birthday star

Rasalhague

The Sun reaches Rasalhague on December 14 every year, 4 days before your birthday. The head of Ophiuchus, the serpent bearer and first healer of the old myths. A star for healers, carers and lifelong students.

Rasalhague sits at 22° Sagittarius.

The stars truly behind your Sun

On December 18 the Sun stands on the border between Ophiuchus and Sagittarius, and in some years it crosses from one to the other that very day. The sign is Sagittarius, because astrologers' signs follow the seasons rather than the stars.

See the real sky behind your whole chart

December 18 in every year from 1940 to 2025

The Sun is in Sagittarius on December 18, but the Moon, Mercury and Venus keep moving. Open your decade to see where they were on your birthday. Times are Greenwich time (UTC), so if the Moon changed sign that day, your birth time and place decide which side of the line you were born on.

The 1940s
YearMoonMercuryVenus
1940LeoSagittariusScorpio
1941Sagittarius, then Capricorn from 16:27SagittariusAquarius
1942TaurusCapricornCapricorn
1943VirgoCapricornScorpio
1944Capricorn, then Aquarius from 07:44Capricorn, retrogradeAquarius
1945GeminiSagittariusSagittarius
1946Libra, then Scorpio from 09:43SagittariusScorpio
1947Aquarius, then Pisces from 09:59SagittariusCapricorn
1948Cancer, then Leo from 22:03SagittariusScorpio
1949SagittariusCapricornAquarius
The 1950s
YearMoonMercuryVenus
1950AriesCapricornCapricorn
1951LeoSagittarius, retrogradeScorpio
1952CapricornSagittariusAquarius
1953Taurus, then Gemini from 11:28SagittariusSagittarius
1954LibraSagittariusScorpio
1955AquariusCapricornCapricorn
1956Gemini, then Cancer from 01:52CapricornScorpio
1957ScorpioCapricorn, retrogradeAquarius
1958Pisces, then Aries from 08:46Sagittarius, retrogradeCapricorn
1959Cancer, then Leo from 07:58SagittariusScorpio
The 1960s
YearMoonMercuryVenus
1960Sagittarius, then Capricorn from 16:17SagittariusAquarius
1961TaurusSagittariusSagittarius
1962VirgoCapricornScorpio
1963CapricornCapricornCapricorn
1964GeminiSagittarius, retrogradeScorpio
1965Libra, then Scorpio from 02:41SagittariusAquarius
1966PiscesSagittariusCapricorn
1967CancerSagittariusScorpio
1968SagittariusCapricornAquarius
1969Aries, then Taurus from 18:36CapricornSagittarius
The 1970s
YearMoonMercuryVenus
1970Leo, then Virgo from 11:05CapricornScorpio
1971Sagittarius, then Capricorn from 04:08Sagittarius, retrogradeCapricorn
1972Taurus, then Gemini from 12:25SagittariusScorpio
1973LibraSagittariusAquarius
1974AquariusSagittariusCapricorn
1975Gemini, then Cancer from 21:49CapricornScorpio
1976ScorpioCapricornAquarius
1977AriesCapricorn, retrogradeSagittarius
1978LeoSagittariusScorpio
1979SagittariusSagittariusCapricorn
The 1980s
YearMoonMercuryVenus
1980TaurusSagittariusSagittarius
1981Virgo, then Libra from 12:58CapricornAquarius
1982Capricorn, then Aquarius from 12:13CapricornCapricorn
1983Taurus, then Gemini from 02:24CapricornScorpio
1984Libra, then Scorpio from 04:28Sagittarius, retrogradeAquarius
1985PiscesSagittariusSagittarius
1986CancerSagittariusScorpio
1987Scorpio, then Sagittarius from 19:33SagittariusCapricorn
1988Aries, then Taurus from 18:11CapricornSagittarius
1989VirgoCapricornAquarius
The 1990s
YearMoonMercuryVenus
1990CapricornCapricorn, retrogradeCapricorn
1991TaurusSagittariusScorpio
1992LibraSagittariusAquarius
1993Aquarius, then Pisces from 12:59SagittariusSagittarius
1994Gemini, then Cancer from 10:25SagittariusScorpio
1995Libra, then Scorpio from 01:07CapricornCapricorn
1996AriesCapricornSagittarius
1997LeoSagittarius, retrogradeAquarius
1998SagittariusSagittariusCapricorn
1999Aries, then Taurus from 16:46SagittariusScorpio
The 2000s
YearMoonMercuryVenus
2000Virgo, then Libra from 07:01SagittariusAquarius
2001AquariusCapricornSagittarius
2002GeminiCapricornScorpio
2003LibraCapricorn, retrogradeCapricorn
2004Pisces, then Aries from 21:53Sagittarius, retrogradeSagittarius
2005Cancer, then Leo from 14:18SagittariusAquarius
2006Scorpio, then Sagittarius from 09:11SagittariusCapricorn
2007AriesSagittariusScorpio
2008VirgoCapricornAquarius
2009CapricornCapricornSagittarius
The 2010s
YearMoonMercuryVenus
2010TaurusCapricorn, retrogradeScorpio
2011Virgo, then Libra from 08:07SagittariusCapricorn
2012Aquarius, then Pisces from 00:49SagittariusSagittarius
2013CancerSagittariusCapricorn
2014ScorpioCapricornCapricorn
2015Pisces, then Aries from 21:27CapricornScorpio
2016Leo, then Virgo from 17:52CapricornAquarius
2017Sagittarius, then Capricorn from 13:34Sagittarius, retrogradeSagittarius
2018Aries, then Taurus from 09:38SagittariusScorpio
2019VirgoSagittariusCapricorn
The 2020s
YearMoonMercuryVenus
2020AquariusSagittariusSagittarius
2021GeminiCapricornCapricorn
2022LibraCapricornCapricorn
2023PiscesCapricorn, retrogradeScorpio
2024LeoSagittariusAquarius
2025SagittariusSagittariusSagittarius

Moon at midnight and the minute it changed sign, Mercury and Venus at noon, all Greenwich time. Your exact placements need your birth time and place. Find your exact Moon sign

How common is a December 18 birthday?

In US birth records from 1994 to 2014, an average of 11,675 babies were born on December 18 each year. That makes it number 56 of 366 birthdays, where 1 is the most common. That is 5% more than an average day.

See every birthday and sign ranked

More from our studies: The rarest rising sign, city by city · How rare is your Big Three? · Were you born with Mercury retrograde?

The Sagittarius in you

Your gift

Faith in life, even when life is hard.

Your growing edge

Staying. The next horizon always calls, and sometimes the treasure is right where you are.

Your decan, the third part of Sagittarius

Ruled by the Sun

The Sun adds warmth and showmanship. You are a born storyteller and teacher, and your joy lights up a room.

Read about the third decan of Sagittarius

Questions about December 18

What zodiac sign is December 18?

If you were born on December 18, your Sun sign is Sagittarius.

Is December 18 a cusp birthday?

No. The Sun is in Sagittarius all day on December 18 in every year between 1930 and 2050, so everyone born on this day is a Sagittarius.

What is the birthday star for December 18?

The Sun reaches Rasalhague on December 14 every year, 4 days before your birthday. The head of Ophiuchus, the serpent bearer and first healer of the old myths. A star for healers, carers and lifelong students.

What was the Moon sign on December 18?

It depends on the year, because the Moon changes sign about every two and a half days. On December 18 2025 the Moon was in Sagittarius, and on December 18 2024 it was in Leo. Find your year in the table above, and add your birth time for the exact sign.

What constellation is the Sun in on December 18?

On December 18 the Sun stands on the border between Ophiuchus and Sagittarius, and in some years it crosses from one to the other that very day. The sign is Sagittarius, because astrologers' signs follow the seasons rather than the stars.

Everything about SagittariusExact Sagittarius dates every yearAll birthdays

Your Sun sign is one star in a whole sky. Your Moon and rising sign tell the rest of your story.

See my birth chart