January 31 zodiac sign: Aquarius
♒︎ Everyone born on January 31 is a Aquarius: from 1950 to 2050 the Sun is in Aquarius for the whole UTC day in every year. Aquarius is a fixed air sign ruled by Saturn (traditional), Uranus (modern).
Where the Sun is on January 31
On January 31 the Sun is at about 10°–13° Aquarius, on day 11–13 of a 30-day Aquarius season. Pisces season begins on February 18 or February 19 (UTC), depending on the year.
Degrees are interpolated between each year's exact ingress times, so they are good to about half a degree; your exact Sun degree needs a birth time, which the birth chart calculator uses.
January 31 decan
January 31 falls in the second decan of Aquarius in every year from 1950 to 2050. Aquarius with Gemini’s curiosity: clever, talkative and experimental.
Aquarius in astrological tradition
Aquarius is traditionally linked with independence, ideas, community. Read more about Aquarius dates and season, Aquarius compatibility and the sign for every January birthday.
Dates are UTC, so a local birthday can fall on a different date; check a boundary birthday in the Sun sign calculator. These are tropical signs, not constellations. How these dates are calculated
Frequently asked questions
What zodiac sign is January 31?
January 31 is Aquarius. In every year from 1950 to 2050, the Sun is in Aquarius for the whole of that UTC date. Aquarius is a fixed air sign ruled by Saturn (traditional), Uranus (modern).
Is January 31 a cusp birthday?
No. The Sun never changes sign on January 31 in the 1950–2050 table. It is day 11–13 of Aquarius season; Pisces season begins on February 18 or February 19 (UTC), depending on the year.
What decan is January 31?
January 31 falls in the second decan of Aquarius in every year from 1950 to 2050. Aquarius with Gemini’s curiosity: clever, talkative and experimental.
Astrology is a symbolic and cultural tradition. The planetary positions on this site are calculated with astronomical accuracy; the interpretations describe what astrologers associate with them and are not scientifically validated predictions about personality, relationships or the future.
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