The Twins · May 21 – June 20
May 25 Zodiac Sign
Born on May 25, you're a Gemini — curious, witty and endlessly adaptable — the zodiac's great communicator.
Zodiac sign
Element · Modality
Air · Mutable
Decan (first)
Jupiter-ruled
Birthstone
Emerald
Birth flower
Lily of the valley
Season position
Day 5 of 31
What astrology says about a May 25 birthday
May 25 is day 5 of Gemini season, so astrologers link it with the sign's core character: curious, witty, adaptable, social. Traits astrologers commonly associate with Gemini include quick, curious and eager to learn; excellent communicator and storyteller; adaptable and comfortable with change.
A commonly cited growth area for Gemini: inconsistency or changing plans often. For the full picture of the sign, read the Gemini guide.
1st decan of Gemini: Jupiter
Each sign is divided into three decans, 10° slices that the Sun crosses in about ten days each. May 25 falls in the first decan of Gemini (about May 21–30), which the traditional Chaldean system assigns to Jupiter. Astrologers say that adds optimism, generosity and big-picture thinking.
Jupiter widens the sign's horizons, adding faith in the future, a generous streak and an appetite for growth, travel and learning.
The number 25 in numerology
The 25 blends analysis with intuition. A 25th-of-the-month birthday is read as perceptive, curious and inclined to trust a well-tested hunch.
Numerology is a separate tradition from astrology and is offered here for interest.
May birthstone and flower
The modern birthstone for May is Emerald and the commonly listed birth flower is the lily of the valley. May falls in late spring in the north and late autumn in the south.
Gemini love and compatibility
For Gemini, attraction starts in the mind. They fall for good conversation, clever banter and someone who can keep up with their many interests. Variety, spontaneity and shared curiosity keep a relationship alive.
Astrology is a symbolic tradition, not a science, and interpretations vary between astrologers. This page is for reflection and entertainment, not prediction or advice.
Beyond your May 25 Sun sign
Your Gemini Sun is one planet. Your Moon, Rising sign and the exact Jupiter-ruled decan details live in your full natal chart. Get yours free on Skygram.
Get my free birth chartMay 25 birthday FAQ
What zodiac sign is May 25?
May 25 falls in Gemini, which runs from May 21 to June 20 in the tropical zodiac. The Sun changes sign at a slightly different moment each year, so the boundary can fall a day or so either side of these dates. If you were born close to the edge, your birth year, time and place decide it.
Is May 25 a cusp birthday?
Not by the usual definition, which counts the first and last couple of days of a sign. May 25 is day 5 of Gemini season, so it is normally read as a clear Gemini birthday.
Which decan is May 25?
May 25 is in the first decan of Gemini (May 21–30). In the traditional Chaldean system this decan is ruled by Jupiter, which astrologers say adds its own flavour to Gemini. Some modern astrologers assign decan rulers by element instead, which gives different planets, and decans are strictly 10° slices of the zodiac, so the date range is approximate.
What are the birthstone and flower for May?
The modern birthstone for May is Emerald and the birth flower is the lily of the valley. These come from calendar tradition rather than astrology, and the lists vary by country and source.