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In short

People born on May 31 are Gemini, with the Sun at about 9° of the sign. It is well past the Taurus border, so birth year and time do not change the answer.

On this page
  1. The last Gemini birthday of May
  2. End of the month, start of summer
  3. Mercury, doubled
  4. On the decan line
  5. Twenty new names by midnight
  6. Falling in love through conversation
  7. Many tabs open at work
  8. The group’s news service
  9. How they celebrate
  10. Your year from May 31
  11. More than your Sun
The Sun in Gemini on May 31♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎♊︎
Zodiac sign
Gemini
Sun position
About 9° Gemini
Decan
1st decan, co-ruled by Mercury
Element · modality
Air · Mutable
Ruling planet
Mercury
Cusp
No, firmly inside the sign
Approximate Sun position on May 31. The exact degree depends on the year and time of birth.

The last Gemini birthday of May

Friends tend to see a May 31 person as the one who always has a new fact, a new plan or a new person to introduce. The sign is Gemini. On this date the Sun is at about 9° of the sign, well clear of Taurus and a long way from Cancer. No birth-time check is needed for the sign itself.

Nine degrees is early Gemini. In the first stretch of any sign, its traits arrive unfiltered. For Gemini, that means a mind that moves fast, an appetite for news, gossip and trivia, and an easy, chatty way of meeting the world.

End of the month, start of summer

May 31 closes the month at a busy point in the Northern Hemisphere calendar. Memorial Day weekend has just passed, school years are ending, graduations fill the weekends, and summer schedules are being sketched out. Days are long and still getting longer, with the solstice three weeks away.

The season feels restless and in between, past spring and short of summer. Gemini, a mutable sign that marks the end of a season, is at home in that kind of transition.

Mercury, doubled

Every sign has three decans of ten degrees. The first decan of Gemini is co-ruled by Mercury, which also rules the sign. Mercury’s themes of thinking, talking, writing, trading and moving around show up twice.

A May 31 person has the purest version of the Gemini mind. They read the back of the cereal box. They know a little about a lot, and they enjoy linking facts nobody else thought belonged together. They text in bursts and answer emails at odd hours because an idea just came to them.

Double Mercury also means double nerves. With too much input, a May 31 person gets scattered or wired, jumping between tabs without finishing any. Time without a screen works as a reset button for them.

On the decan line

At about 9°, May 31 sits on the last degree of the first decan. The second decan, co-ruled by Venus, starts around June 1. That closeness adds a little warmth and an eye for style to the quick Mercury wiring. It is a light touch. Some May 31 people notice they care more about how things look and sound than the textbook Gemini does.

Twenty new names by midnight

They walk into a graduation party knowing two people and leave knowing twenty. Along the way, they’ve learned what the host’s cousin studies, recommended a podcast to someone’s grandfather, and found out where the caterer gets the bread.

At home, three books lie open, a language app shows a long streak, and a list on the fridge keeps getting rewritten. To them it isn’t chaos. A curious mind needs plenty to chew on.

Falling in love through conversation

May 31 people fall in love through banter, inside jokes and long exchanges of messages. A partner who keeps up, and who doesn’t mind changing plans halfway through the evening, has an advantage.

They need variety inside commitment. Same restaurant every Friday? They’ll suggest a new one. Same weekend routine? They’ll want a day trip. They are keeping the relationship alive, and the urge has nothing to do with a wandering heart.

When there’s tension, they want to talk it out right away and from several angles. A partner who goes silent unsettles them more than one who argues. More on pairings: Gemini compatibility.

Many tabs open at work

At work, May 31 people are quick studies. Give them a new system, and they’ll have found the shortcuts by Wednesday. They do well in writing, sales, teaching, media, customer-facing roles and coordination between teams, anywhere information has to move.

They can hold several projects at once and struggle to finish them. On deadline, a May 31 Gemini does the best work in the final hours, powered by sudden focus. Checkpoints help, and so does a colleague who enjoys closing loops.

The group’s news service

As an air sign, Gemini lives on connection. Friends count on May 31 people for updates, recommendations and a good story. They’re the ones who say “you have to meet my friend, you’d get along,” and they’re usually right.

Their friendships run wide more than deep. The ones that last are with people who stay interesting to them, and who understand that a two-week silence doesn’t end the friendship.

How they celebrate

A May 31 birthday blends into the start of summer, with a backyard barbecue, a rooftop evening or a picnic that turns into frisbee. They like a crowd, a mix of friend groups and plenty of conversation. A good book or a ticket to a talk makes a better gift than anything that just sits on a shelf.

Your year from May 31

Around May 31 each year, the Sun returns to the degree it held when you were born, and the solar return chart for that moment frames the year that follows.

Early Gemini does well this year by going deep in one place. Choose one skill, subject or relationship to invest in more seriously, and your curiosity gets something solid to build on.

More than your Sun

The Sun is one layer of the chart. Your Moon, Rising sign, planet strength and balance of elements complete it, as our method page explains. Use the birth chart calculator to see your full chart, explore the rest of the May birthdays, or compare with a later Gemini date such as June 9.

Questions

What sign is someone born on May 31?

Gemini. The Sun is around 9° Gemini on May 31 in every year, comfortably inside the sign and about ten days past the Taurus boundary.

Which decan is May 31 in?

The first decan of Gemini, 0° to 10°. It is co-ruled by Mercury, which also rules Gemini, so the sign's traits of curiosity, speed and language come through doubled.

Is May 31 close to the second decan?

Yes. At about 9°, it sits at the end of the first decan, right before the Venus-ruled second decan begins around June 1. Many May 31 people combine pure Mercury quickness with a growing taste for charm and beauty.

What are May 31 Gemini people like at work?

Fast learners who juggle many tasks and explain things well. They thrive in roles with variety, conversation and new information, and get restless in repetitive ones.

What can May 31 people focus on in the coming year?

Depth in one area. Your range is already wide. Choosing one skill or subject to go further with can turn scattered interest into real expertise.

May birthdays

May zodiac sign: Taurus, then Gemini →