Aquarius runs January 20 – February 18. Today's Aquarius horoscope covers love, money, and energy, and is updated every morning.
Your sun sign is the zodiac sign the Sun was passing through on the day you were born. For Aquarius that is roughly January 20 to February 18, though the exact cutoff shifts by up to a day from year to year, so anyone born on the edge should check their birth time against a calculated chart rather than a calendar.
Aquarius has two rulers and both are needed. Saturn, the traditional ruler, explains the sign's structure, discipline, and preference for principle over impulse. Uranus, assigned as modern co-ruler after its discovery in 1781, explains the disruption, the sudden turns, and the refusal of inherited arrangements. An Aquarius is usually a rigorous person arguing for something unreasonable.
Independent. Aquarius decides what it thinks first and checks the consensus afterwards, if at all.
Principled. Fixed air holds positions. When an Aquarius takes a stand it is generally on a rule they have thought through rather than a feeling of the moment.
Inventive. The useful Aquarian question is why is it done this way, asked seriously rather than rhetorically.
Detached. The sign observes its own emotions from a slight distance. This makes Aquarius excellent in a crisis and hard to reach afterwards.
Communal. The eleventh house is groups. Aquarius often cares intensely about humanity in general and needs long stretches away from specific humans.
Contrary. Fixed and unconventional at once, which means an Aquarius can dig in on an unpopular position purely because the pressure to abandon it is coming from outside.
The three air signs all deal in ideas, language, and other people, but the modality splits them:
Libra (cardinal air) initiates connection. Aquarius (fixed air) holds a position or a principle. Gemini (mutable air) circulates and translates.
Fixed air is the most stubborn form of thought in the zodiac. It is why Aquarius is often years early on an idea and unmoved during the whole stretch where nobody agrees.
Each sign has a natural house. Aquarius takes the eleventh: friendships, groups, networks, and hopes for the future. It sits opposite Leo's fifth house of personal creativity and romance. The axis is the individual against the collective, and Aquarius keeps choosing the collective and then wondering why it feels alone.
Sun-sign compatibility is the shallowest layer of a real compatibility reading. A full synastry comparison weighs Moon, Venus, Mars, and the angles between two whole charts. With that caveat:
The water-bearer is often identified with Ganymede, a mortal taken to Olympus to pour for the gods — a servant among immortals, which is a fitting image for a sign that is both inside the system and never quite of it.
The far older layer is Babylonian: the Great One, a figure pouring an overflowing vessel, associated with the rainy season and with Ea, god of fresh water and wisdom. Note that Aquarius is an air sign carrying water. The vessel holds knowledge to be distributed, not emotion to be felt.
"Aquarius is a water sign." It is not. The water-bearer is a person carrying a vessel, and Aquarius is fixed air. This is the single most common mistake made about the sign.
"Aquarians are cold." The distance is analytic, not indifferent. An Aquarius will reorganise their life around a principle that protects people they will never meet.
"Your sun sign is your personality." It is one factor. Your Moon, rising sign, Venus, and Mars can pull a chart a long way from the sun-sign stereotype.
Oprah Winfrey (Jan 29) · Abraham Lincoln (Feb 12) · Toni Morrison (Feb 18) · Bob Marley (Feb 6) · Virginia Woolf (Jan 25) · Charles Darwin (Feb 12)
Born January 18–21 or February 17–20? The Sun's sign change happens at a specific moment, not at midnight, and it moves year to year. There is no such thing as being half Aquarius, half Pisces. You are one or the other, and a calculated chart settles it in seconds.