Aquarius horoscope dates

Aquarius Horoscope Dates: January 20 – February 18

The Aquarius horoscope dates run from January 20 to February 18. If your birthday falls anywhere in that window, your Sun sign is Aquarius — independent, original, and humanitarian — the zodiac’s visionary and free thinker. Below you’ll find the exact Aquarius dates, what happens if you were born on the cusp, the three decans of Aquarius and how they shade your personality, plus a quick snapshot of the sign. For the full personality profile, love matches, and more, see the complete Aquarius zodiac sign guide.

Aquarius at a glance

DatesJanuary 20 – February 18
ElementAir
ModalityFixed
Ruling planetUranus (and Saturn)
Symbolthe Water Bearer
Sign beforeCapricorn
Sign afterPisces

When does Aquarius start and end?

Aquarius season begins on January 20 and ends on February 18. You may see the dates listed a day earlier or later on other sites, and that’s not an error — the Sun doesn’t change signs at the same clock time every year, so the exact start and end can shift by about a day depending on the year and your time zone. For almost everyone, the January 20 to February 18 range is exactly right. If your birthday lands on the very first or very last day, read the cusp section below.

Were you born on the Aquarius cusp?

Born right at the edge of Aquarius? Then you were born on a cusp — the changeover point between two signs. The first day of Aquarius (January 20) sits on the Capricorn–Aquarius cusp, and the last day (February 18) sits on the Aquarius–Pisces cusp. Astrologically there’s no such thing as being “half and half,” though — you are still fully one sign or the other. The only way to know for certain is to check the exact moment the Sun changed signs in your birth year, because a birthday on the boundary can fall under either sign depending on the year and the hour you were born. If you were born on January 20 or February 18, a quick birth-chart lookup will settle it for good.

The three decans of Aquarius

Every sign is divided into three decans of roughly ten days, each with a sub-ruler that adds its own flavour to the core Aquarius personality. Here’s where you fall:

  • First decan (January 20–29): the purest expression of Aquarius, doubly ruled by Uranus and Saturn — the most classic Aquarius traits.
  • Second decan (January 30–February 8): shaded by Gemini (sub-ruled by Mercury), adding a Gemini twist to your Aquarius core.
  • Third decan (February 9–18): shaded by Libra (sub-ruled by Venus), adding a Libra twist to your Aquarius core.

Aquarius personality in brief

As a air fixed sign ruled by Uranus (and Saturn), Aquarius is independent, original, and humanitarian — the zodiac’s visionary and free thinker. That’s the short version — for the full breakdown of Aquarius traits, strengths and weaknesses, love and compatibility, the Aquarius man and woman, career, and mythology, read the complete Aquarius zodiac sign guide.

Frequently asked questions

What are the Aquarius horoscope dates?
Aquarius covers birthdays from January 20 to February 18.

Is Aquarius the sign for someone born on January 20?
Yes — January 20 is the first day of Aquarius. Because it’s a cusp date, anyone born exactly on January 20 should double-check their birth year to be certain, but it falls under Aquarius in most years.

What sign comes before and after Aquarius?
Capricorn (ends as Aquarius begins) comes just before Aquarius, and Pisces (begins as Aquarius ends) comes just after.

Explore more: read the full Aquarius zodiac sign guide, or check the horoscope dates for the neighbouring signs, Capricorn and Pisces.