♋︎ Cancer · June 21 – July 22 · Cardinal water

Cancer Zodiac Sign: Traits, Dates & Compatibility

By Dima Tretyak · Updated October 23, 2026 · Sun dates calculated, not copied

Cancer is a cardinal water sign, and its Sun season runs from June 21 to July 22 (2026, US Eastern; the exact days shift by a day from year to year). People born under it tend to feel first and think second, and they often build their lives around home, memory and the people they protect.

Cancer at a glance

Dates: June 21 – July 22
Sun enters: June 21, 2026 at 4:25 AM EDT
Sun leaves: July 22, 2026 at 3:13 PM EDT
Symbol: ♋︎ The Crab
Element: Water
Modality: Cardinal
Polarity: Receptive
Ruler: ☽︎ Moon
Exalted here: ♃ Jupiter
In detriment here: ♄ Saturn
In fall here: ♂︎ Mars
Opposite sign: Capricorn
Same element: Scorpio, Pisces
Natural house: 4th · home & family

Cancer traits

Water is the element of feeling, intuition, memory, loyalty and protectiveness, and Cancer carries all five close to the surface. You may remember small events from years ago, including who said what and how the room felt. That memory is part of why attachments run deep and why old hurts can linger. The sign is also receptive in polarity, which fits a temperament that takes in moods and ideas from people and places nearby before it responds.

Cardinal signs start things, take the initiative and want to lead. In Cancer this shows up quietly. Instead of announcing a plan, you may begin by making a place safe, gathering people or looking after a need nobody mentioned. Leadership here tends to be tenacious rather than loud, like the crab that holds on once it has grabbed something.

The Moon rules Cancer, and it governs feelings, habits, daily needs and the public mood. That is why routine, comfort and family ties matter so much, and why moods can change from one day to the next. Jupiter is exalted here, so growth, generosity and faith tend to show their best side through care for others. Saturn is in detriment, since limits sit awkwardly with a sign that wants warmth and closeness. Mars is in fall: drive and anger are weakened, so direct confrontation may feel costly and frustration often comes out sideways. The opposite sign, Capricorn, is practical. It shows what Cancer can borrow when feelings need structure.

Strengths

Cancer's strengths come from care and staying power. You tend to notice what others need before they say it, and the imaginative streak gives that attention some creativity. Loyalty is real here, and so is protectiveness toward family and friends. A retentive memory can make you the person who recalls the details that matter. Tenacity helps as well: once Cancer commits, it often keeps going long after others lose interest. Thriftiness and respect for tradition add a steady, careful quality.

Weaknesses

The shadow side of Cancer is dwelling on the past and on personal feelings. That can slide into worry and timidity, along with a habit of hoarding, whether objects, grudges or old stories. Shyness may keep you from asking for what you want, while a wish for approval can make criticism sting more than it should. With Mars in fall, anger may go unspoken and then return as moodiness. A grasping, inactive streak can also hold back progress when change feels unsafe.

Cancer in love

In love, Cancer tends to look for a home as much as a partner. You may show affection through meals and remembered dates. Sympathy and approval matter a great deal, so reassurance often counts for more than grand gestures. The same sensitivity can make you pull back when hurt, and then wait for the other person to notice. Water signs Scorpio and Pisces share your emotional language, while Capricorn, the opposite sign, offers the pull of opposites: steadier and more reserved, yet drawn to the same wish for security.

Cancer as a friend

Cancer friends are often the ones who remember birthdays, ask follow-up questions and keep the group connected. You may prefer a few close bonds to a wide circle, and trust can take time. Once it is given, you tend to be dependable and protective. Because the Moon makes you quick to absorb other people's moods, you may need time alone to sort out which feelings are yours.

Cancer at work

At work, Cancer tends to do well where care and steady effort count. The cardinal drive helps you start projects, especially ones that support people or build something lasting. Imagination may suit creative or caring fields, and thrift usually shows up as careful use of resources. You may work best with clear, kind guidance, since the Moon-ruled side picks up the mood of a workplace quickly. Capricorn's practical focus can be a useful model when worry slows decisions.

The three decans of Cancer

Decan	Sun from (2026)	Sub-sign	Ruler
1 · 0°–10°	June 21	♋︎ Cancer	☽︎ Moon
2 · 10°–20°	July 2	♏︎ Scorpio	♂︎ Mars / ♇ Pluto
3 · 20°–30°	July 12	♓︎ Pisces	♃ Jupiter / ♆ Neptune

The first decan, from June 21, is Cancer itself under the Moon. It is the most openly sensitive and home-loving stretch, with moods that follow the people nearby. The second decan, from July 2, takes on Scorpio and is ruled by Mars, with Pluto as its modern ruler. Expect more intensity and determination, along with reserve and an interest in what is hidden. The third decan, from July 12, takes on Pisces and is ruled by Jupiter, with Neptune as its modern ruler. It leans toward compassion and imagination, with a changeable mood, and generosity tends to come easily.

Cancer compatibility

Questions

✦What are the dates for Cancer?

The Sun is in Cancer from June 21, 2026 at 4:25 AM EDT to July 22, 2026 at 3:13 PM EDT. The exact day can shift by one from year to year, so people born on June 21 or July 22 should check their birth year.

✦What element and modality is Cancer?

Cancer is a cardinal water sign (receptive), ruled by Moon.

✦What are Cancer traits?

Cancer is often described as sensitive and protective, with a vivid imagination, a strong memory and a love of home. Shyness and a wish for approval are common too. These are tendencies, and the rest of the chart shapes how they show.

✦What is Cancer's ruling planet?

The Moon rules Cancer. It stands for feelings and daily needs, along with the public mood, which fits the sign's changeable emotions and attachment to routine and family. Jupiter is exalted here, while Saturn is in detriment and Mars is in fall.

✦Who is Cancer most compatible with?

By element, Cancer shares water with Scorpio and Pisces, so feelings tend to feel familiar, and intuition does too. Capricorn, the opposite sign, brings the attraction of opposites, with practicality set against sensitivity. Any pairing depends on the full charts of both people.

✦What is Cancer's weakness?

Cancer's usual shadow is dwelling on the past and on personal feelings. That can bring worry and timidity, and a tendency to hold on too tightly to things or hurts. Awareness of the pattern often helps soften it.