Aquarius
Jan 20 – Feb 18
About this sign
Ruled by revolutionary Uranus, Aquarius is the zodiac's visionary and free thinker, marching to a rhythm entirely your own. You see the world not as it is but as it could be, drawn to progress, innovation and the welfare of humanity as a whole. Independent and intellectual, you cherish your individuality, befriend all kinds of people, and are unafraid to question conventions that everyone else takes for granted.
Your gift for the universal, however, can pull you away from the personal. You may live more in ideas than in feelings, keeping emotional distance even from those who love you, and your stubborn streak hides behind a cool exterior. Your growth lies in connection: letting people in, honouring the heart alongside the mind. When you marry your brilliant vision with genuine warmth, you become a true force for the better world you can already imagine.
Strengths
Challenges
How Aquarius works
Air is the element of relation. Air signs think in connections between things rather than in the things themselves, which makes them quick, sociable and prone to treating a well-argued idea as though it were already a decision. Fixed signs hold the middle of each season, and they hold positions in the same way. That is where their reliability comes from, and also their difficulty — a fixed sign changing its mind is a genuine event. Put those together and Aquarius is the fixed face of air — the specific combination only one sign in the zodiac has.
Aquarius is ruled by Uranus, which is the body to watch if you want to know how an Aquarius is doing. When Uranus is well placed, the sign's better qualities are easy to reach; when it is retrograde or under pressure, the same qualities turn brittle in a recognisable way.
Across the zodiac sits Leo, Aquarius's opposite sign. Opposites are not enemies in astrology — they are the missing half. Most of what Aquarius struggles to do naturally, Leo does without thinking, which is why the pairing is simultaneously the most difficult and the most instructive one on the wheel.
The three decans of Aquarius
Each sign covers thirty degrees, and the three ten-degree thirds — the decans — are traditionally governed by the rulers of the three signs sharing its element. Two people born three weeks apart are both Aquarius, but not quite the same Aquarius. Dates are approximate and shift by about a day between years.
- 1 January 20–29 · ♒ Aquarius decan, ruled by Uranus
The first decan is the purest expression of Aquarius — Uranus rules it twice over, so the sign's traits arrive undiluted.
- 2 January 30 – February 8 · ♊ Gemini decan, ruled by Mercury
Mercury adds a second flavour here: still Aquarius, but with a noticeable Gemini accent to how it plays out.
- 3 February 9–18 · ♎ Libra decan, ruled by Venus
Venus adds a second flavour here: still Aquarius, but with a noticeable Libra accent to how it plays out.
Aquarius compatibility at a glance
Every sign scored against Aquarius on element, angle and modality. These are sun-sign scores — a starting point for a conversation, not a verdict on a particular relationship. Follow any row for the full pairing.
- Aries 5/5
- Gemini 5/5
- Leo 5/5
- Libra 5/5
- Sagittarius 5/5
- Aquarius 4/5
- Cancer 2/5
- Capricorn 2/5
- Pisces 2/5
- Scorpio 2/5
- Virgo 2/5
- Taurus 1/5
Aquarius questions
What are the Aquarius dates?
Aquarius runs from January 20 to February 18. The exact boundary shifts by up to a day between years, because the Sun does not enter a sign at the same clock time every year — if you were born within a day of either end, a birth chart is the only way to be certain.
Who is Aquarius most compatible with?
On sun-sign scoring alone, Aries comes out highest, and the rest of the ranking is on this page. That said, a sun-sign score compares two twelfths of the population; it describes a tendency, not a verdict on a particular relationship.
Which sign is hardest for Aquarius?
Taurus scores lowest here, mostly because of the element mismatch and the angle between the two signs. Difficult pairings are not doomed ones — they simply need the differences named out loud rather than assumed away.
What planet rules Aquarius?
Uranus. In practice that means its movements — the sign it is in, and whether it is retrograde — track the periods when an Aquarius feels most and least like themselves.