Cancer zodiac sign: dates, traits and the protective crab

Updated October 10, 2026 · How we write these pages

The short answer

The Cancer zodiac sign is the fourth of the twelve, for birthdays from about June 21 to July 22. It is a cardinal water sign ruled by the Moon, and its symbol is the crab. Astrology describes Cancer as caring, protective, intuitive and loyal, with a tough outer shell, a soft interior and a long memory for how things felt.

Cancer at a glance

June 21 to July 22

Element

Water

Modality

Cardinal, starts

Ruling planet

☽︎ Moon

Symbol

The crab

Where it sits in the zodiac

Rows are the four elements, columns the three modalities. Signs in the water row share its element; signs in the cardinal column share its pace.

Your big three

Your Sun may be Cancer. What about the rest?

Enter your birthday to check your sun sign and see where the Moon was that day. On a cusp birthday you get the minute the Sun changed sign.

Cancer dates and the summer solstice

Cancer season begins at the June solstice, around June 21, and runs to about July 22. It is the start of summer in the Northern Hemisphere and the longest day of the year. The Tropic of Cancer, the line on maps where the Sun stands directly overhead at the June solstice, got its name because the Sun was in the constellation Cancer at that point of the year when the line was named in antiquity.

Born on June 20, 21 or 22, or July 22 or 23? You are close to the Gemini or Leo border. An exact birth chart for your year, time and place will confirm your sun sign.

Why the sign is called Cancer

Cancer is simply the Latin word for crab, and the sign's name is far older than the medical use of the word. Ancient physicians named the disease after the crab because of the shape of certain tumors. In astrology the name carries only the meaning of the animal: a creature with a hard shell, a soft body, and a sideways approach to getting where it wants to go.

Your Moon changes sign every few days

The Moon rules Cancer and crosses into a new sign every two to three days. Get a daily horoscope written from today's sky against your chart, and a reading of your Moon placement.

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Is Cancer a water sign?

Yes. Cancer is the first of the three water signs, with Scorpio and Pisces. Water is the element of feeling, intuition and memory in astrology, and Cancer is its cardinal form: the one that takes the lead emotionally. A Cancer is often the friend who notices you are upset before you say anything, then quietly makes you dinner.

The Moon as ruler makes Cancer the only sign ruled by a luminary that changes shape every night. The Moon governs moods, the home, mothers and the past in astrology, so it is no surprise that Cancer is associated with family, nostalgia and changeable feelings. Many astrologers say the sign's moods follow a rhythm, much like the Moon's phases.

Cancer traits and personality

The crab is a precise image for the Cancer personality. A hard shell protects a very soft interior, and the shell stays on until trust is earned. With strangers Cancer can seem reserved or even cold. With their people they are warm, funny, nurturing and fiercely protective.

  • Nurturing: Cancer takes care of people, often before they are asked.
  • Loyal: once you are family, chosen or otherwise, you stay family.
  • Intuitive: reads moods and undercurrents with unusual accuracy.
  • Sensitive: takes criticism to heart and remembers hurt for a long time.
  • Moody: feelings shift like tides, and withdrawal into the shell is the classic response to stress.
  • Home loving: needs a space that is truly theirs, and puts real effort into making it feel safe.

Cancer in love

Cancer loves with commitment and care. They want emotional safety more than excitement and tend to look for a partner they can build a home with. Small gestures carry great weight: a remembered anniversary, a call when they are sick, an effort with their family.

The trouble spots are indirectness and old hurts. Like the crab moving sideways, a Cancer may hint at what is wrong instead of saying it, and expect a partner to read the signs. Saying needs out loud is the classic Cancer growth edge.

Start with the partner's Moon: because the Moon rules Cancer, it often says more than their Sun. Water signs understand Cancer's moods without being told and earth signs give it somewhere safe to land, which is why tradition lists them first, and Capricorn, the opposite sign, supplies the structure Cancer secretly wants.

Cancer at work

Cancer is happiest in work that cares for people or preserves something worth keeping: nursing, teaching, social work, childcare, hospitality, cooking, real estate, history, museums and family businesses. Cancer colleagues often become the emotional center of a team, the one who remembers birthdays and notices who is struggling.

They also have a sharp sense of security and can be excellent with money, saving steadily for the people they love. Stress shows up as overwork for others and neglect of their own needs, so boundaries are a skill worth practicing.

Jupiter's exaltation in Cancer

Jupiter is exalted in Cancer, traditionally at 15 degrees, so the planet of generosity, growth and protection is honored in the sign of caring. Saturn, the planet of limits, is in detriment here, and Mars, the planet of force, is in fall. Tradition reads that as hard edges working poorly in the sign that wants to nurture.

A Mars in Cancer is therefore described as indirect: anger comes out as mood, sulking or a defensive silence rather than open argument.

Cancer as a friend and in the family

Cancer friendships feel like family, often literally: the crab adopts its friends, feeds them and remembers their parents' names. It takes time to trust, and the shell stays on with new people, but once you are inside it you have someone who will drive across town at night if you need them.

Family is the center of the Cancer world. Many Cancers keep traditions alive, hold the family photos and organize the holidays. As parents they are protective and devoted, sometimes so much that letting children go is hard. Friction tends to come from hurt feelings that were never said out loud.

Cancer best and worst matches

Cancer scores highest in the compatibility test with Pisces and Scorpio, the other water signs, and next with Taurus and Virgo, the earth signs that give it somewhere safe to land. The pairings that score lowest are the squares and quincunxes, where independence or bluntness meets the crab's need for safety.

MatchScore out of 100Why
Best: Pisces88Same element, same pace
Best: Scorpio87Same element, same pace
Best: Taurus84Complementary elements that feed each other
Hardest: Aries55Same pace, clashing element
Hardest: Aquarius53Little common ground to start from

Cancer rising and Cancer moon

Cancer rising gives a gentle, protective, slightly guarded first impression, and it makes the Moon the ruler of the whole chart, so your moon sign carries extra weight.

A Cancer moon is the Moon in its own sign. Feelings are deep, protective and long remembered, home and family matter enormously, and the need for a safe place and safe people comes before almost anything else.

Cancer season dates by year: when does the Sun enter Cancer?

Cancer starts at the June solstice, so this is also the table of solstice times. Cancer season 2027 starts on June 21 at 14:10 UTC, and Cancer season 2028 starts on June 20 at 19:50 UTC.

From 1970 to 2035 the Sun entered Cancer as early as June 20 at 19:10 UTC (2032) and as late as June 22 at 01:20 UTC (1971). By date, that is June 21 in 58 of the 66 years, June 20 in 6 and June 22 in 2. Times are UTC and good to within 15 minutes, so a birth within a quarter hour of the listed time needs a full birth chart. In June US Eastern is 4 hours behind UTC and Pacific is 7.

YearSun enters (UTC)Year, cont.Sun enters, cont.
1970Jun 21, 19:402003Jun 21, 19:10
1971Jun 22, 01:202004Jun 21, 00:50
1972Jun 21, 07:102005Jun 21, 06:40
1973Jun 21, 12:502006Jun 21, 12:20
1974Jun 21, 18:402007Jun 21, 18:10
1975Jun 22, 00:302008Jun 21, 00:00
1976Jun 21, 06:202009Jun 21, 05:40
1977Jun 21, 12:102010Jun 21, 11:30
1978Jun 21, 18:002011Jun 21, 17:20
1979Jun 21, 23:502012Jun 20, 23:00
1980Jun 21, 05:402013Jun 21, 04:50
1981Jun 21, 11:302014Jun 21, 10:40
1982Jun 21, 17:202015Jun 21, 16:30
1983Jun 21, 23:102016Jun 20, 22:20
1984Jun 21, 05:002017Jun 21, 04:20
1985Jun 21, 10:402018Jun 21, 10:00
1986Jun 21, 16:302019Jun 21, 15:50
1987Jun 21, 22:102020Jun 20, 21:40
1988Jun 21, 04:002021Jun 21, 03:30
1989Jun 21, 09:502022Jun 21, 09:20
1990Jun 21, 15:302023Jun 21, 15:00
1991Jun 21, 21:202024Jun 20, 20:50
1992Jun 21, 03:102025Jun 21, 02:30
1993Jun 21, 08:502026Jun 21, 08:20
1994Jun 21, 14:402027Jun 21, 14:10
1995Jun 21, 20:302028Jun 20, 19:50
1996Jun 21, 02:202029Jun 21, 01:40
1997Jun 21, 08:102030Jun 21, 07:30
1998Jun 21, 14:002031Jun 21, 13:20
1999Jun 21, 19:502032Jun 20, 19:10
2000Jun 21, 01:402033Jun 21, 01:00
2001Jun 21, 07:302034Jun 21, 06:50
2002Jun 21, 13:202035Jun 21, 12:40

Your Moon changes sign every few days

The Moon rules Cancer and crosses into a new sign every two to three days. Get a daily horoscope written from today's sky against your chart, and a reading of your Moon placement.

Get my daily horoscope

Questions people ask

Who does Cancer usually marry?

Nothing in a chart decides it, but Cancer by tradition and by our test is most at ease with Pisces and Scorpio, then Taurus and Virgo. Capricorn, the opposite sign, offers the structure Cancer quietly wants. The Cancer compatibility page has every pairing.

Which days can the Sun enter Cancer?

Three, though one dominates. In UTC the Sun entered Cancer on June 21 in 58 of the 66 years, June 20 in 6 and June 22 in 2 from 1970 to 2035. So June 22 is Cancer all day in 64 of the 66 years, while June 20 is Gemini all day in 60 of them and Cancer for its last hours only in the other 6.

What is the Cancer symbol?

The crab, drawn as ♋, two curled shapes that look like claws or the number 69 on its side. In Greek myth the crab Karkinos was sent by Hera to distract Heracles during his fight with the Hydra.

What planet rules Cancer?

The Moon. It is the only sign ruled by the Moon, which in astrology governs feelings, the home, family and memory, the core themes of Cancer.

Why is Cancer ruled by the Moon?

The Moon is the fastest-moving of the visible bodies and its shifting face suits a sign tied to feeling, home and memory. In the traditional system the Sun and Moon each rule just one sign, Leo and Cancer, and every other planet rules two.

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