January birthdays

January 31 zodiac sign

By Maren Tremblay, Fatesight editor · Last updated October 30, 2026

January 31 is Aquarius: at noon UTC on this date from 1950 to 2010, the Sun stood between 10°33' Aquarius and 11°45' Aquarius, in the second decan, with the constellation Capricornus behind it.

What the second decan of Aquarius is read as

The second decan of Aquarius is read as carrying a touch of Gemini and Mercury. The ideas want a listener. These Aquarians tend to talk to anyone, to fall for a mind before a face, and to be happiest with a group chat full of strangers who agree on one odd thing.

What the number 4 adds

Numerology reads a birthday that comes to 4 as the mark of a builder. It tends to mean good habits, a love of things done properly, and a slow but very steady way of deciding who gets to come close.

The sky on January 31, 1950 to 2010

Mercury: Aquarius in 34 and Capricorn in 27 of 61 years. Retrograde in 1956, 1962, 1963, 1969, 1975, 1976, 1982, 1989, 1995, 2002, 2008 and 2009. Mercury in Aquarius.

Venus: Pisces in 22, Capricorn in 20, Aquarius in 12 and Sagittarius in 7 of 61 years. Retrograde in 1950, 1958, 1966, 1974, 1982, 1990, 1998 and 2006. Venus in Pisces.

Mars: Capricorn in 8, Pisces in 8, Scorpio in 7, Sagittarius in 7, Aries in 6, Taurus in 5, Aquarius in 5, Libra in 4, Gemini in 3, Cancer in 3, Leo in 3 and Virgo in 2 of 61 years. Retrograde in 1961, 1963, 1965, 1978, 1980, 1993, 1995 and 2010. Mars in Capricorn.

New Moons: 1976. Full Moons: 1961 and 1999. Lunar eclipses: 1999 (penumbral).

The Chinese New Year moves between late January and mid-February. January 31 came before it in 1950, 1951, 1953, 1954, 1956, 1958, 1959, 1961, 1962, 1964, 1965, 1967, 1969, 1970, 1972, 1973, 1975, 1977, 1978, 1980, 1981, 1983, 1984, 1985, 1986, 1988, 1989, 1991, 1992, 1994, 1996, 1997, 1999, 2000, 2002, 2003, 2005, 2007, 2008 and 2010, so those years take the animal of the year before.

Every year's sky on January 31

At noon UTC. R: retrograde.

Who you tend to match with

Aquarius: closest Gemini, Libra and Sagittarius; hardest Scorpio. Its second decan leans Gemini. All twelve.

How we calculate the sky

• January 30
• February 1
• January zodiac signs
• Aquarius
• Birth chart calculator