Tradition

January Zodiac Sign: Capricorn or Aquarius

Tradition: Western astrology. A tradition, not a forecast. Astrologers read it this way; the evidence does not.

By Suraj Giri

January birthdays from January 1 to 19 are Capricorn, and from January 20 to 31 are Aquarius, on the dates most calendars use. January 19 and January 20 are cusp days that can go either way.

January birthdays and their signs; shares of birth hours from 1950 to 2029, US Eastern time
DateSignShare
January 1Capricorn
January 2Capricorn
January 3Capricorn
January 4Capricorn
January 5Capricorn
January 6Capricorn
January 7Capricorn
January 8Capricorn
January 9Capricorn
January 10Capricorn
January 11Capricorn
January 12Capricorn
January 13Capricorn
January 14Capricorn
January 15Capricorn
January 16Capricorn
January 17Capricorn
January 18Capricorn
January 19CapricornCapricorn 96, Aquarius 4
January 20AquariusAquarius 70, Capricorn 30
January 21Aquarius
January 22Aquarius
January 23Aquarius
January 24Aquarius
January 25Aquarius
January 26Aquarius
January 27Aquarius
January 28Aquarius
January 29Aquarius
January 30Aquarius
January 31Aquarius

January cusp days

  • January 19: about 96 percent Capricorn and about 4 percent Aquarius (1950 to 2029, US Eastern time).
  • January 20: about 70 percent Aquarius and about 30 percent Capricorn (1950 to 2029, US Eastern time).
  • The Sun's move into Aquarius landed between January 19 and January 20 (US Eastern time) in those years.

Capricorn and Aquarius in love

Capricorn

By this site's zodiac points method, a Capricorn scores highest with Taurus and Virgo, a strong match at 8 of 8 points, then Scorpio and Pisces, a good match at 5 of 8.

PairVerdictPointsAspect
Taurus and Capricornstrong match8 of 8trine
Virgo and Capricornstrong match8 of 8trine
Scorpio and Capricorngood match5 of 8sextile
Capricorn and Piscesgood match5 of 8sextile

who Capricorn is compatible with

Today's Capricorn love horoscope

Aquarius

By this site's zodiac points method, an Aquarius scores highest with Gemini and Libra, a strong match at 8 of 8 points, then Aries and Sagittarius, a good match at 5 of 8.

PairVerdictPointsAspect
Gemini and Aquariusstrong match8 of 8trine
Libra and Aquariusstrong match8 of 8trine
Aries and Aquariusgood match5 of 8sextile
Sagittarius and Aquariusgood match5 of 8sextile

who Aquarius is compatible with

Today's Aquarius love horoscope

Check two January birthdays together

Scores come from this site's zodiac points method (formula 1.1), reviewed by Jahben R., astrologer, on 2026-09-23. How it works is on the methodology page.

Questions people ask

Is January an Aquarius?
Partly. January 1 to 19 is Capricorn and January 20 to 31 is Aquarius, on the dates most calendars use; January 19 and January 20 can go either way.
What are the cusp days in January?
January 19 and January 20. From 1950 to 2029 (US Eastern time), January 19 was about 96 percent Capricorn and January 20 about 70 percent Aquarius.
Which signs do January birthdays match best in love?
By this site's zodiac points method, a Capricorn scores highest with Taurus and Virgo (a strong match, 8 of 8 points), then Scorpio and Pisces (a good match, 5 of 8); an Aquarius with Gemini and Libra (a strong match, 8 of 8 points), then Aries and Sagittarius (a good match, 5 of 8).
  • December
  • February

Sources