Health

How to Find Your Temperament from Your Birth Chart

The classical step-by-step method for reading temperament in a chart: the Ascendant and its ruler, the Moon by sign and phase, the season of birth, and sect, the way physicians read it from Galen to Lilly.

·July 6, 2026·7 min read·Updated July 7, 2026

Quick answer: Classical astrologers did not read temperament from the Sun sign. They weighed several factors together: the sign of the Ascendant, the sign and condition of its ruler, the Moon by sign and phase, the season of birth, and the sect of the chart. You count how many point to hot, cold, wet or dry, and the leading balance names your temperament.

Most people expect their "type" to come from their Sun sign. The older tradition worked differently. Physicians and astrologers from Galen through Ptolemy to William Lilly read temperament as a balance of the four qualities: hot, cold, wet and dry. They drew that balance from several parts of the chart at once. The result was a constitution, not a fortune. Below is the classical procedure, laid out so you can walk through it with your own chart.

A medical-astrology figure surrounded by zodiac symbols and humoral notes, from an early printed almanac used by physicians.
An engraved astrological birth chart of Martin Luther, his portrait ringed by the zodiac and planetary positions, after Origanus.

The Factors You Weigh

Temperament was never read from a single placement. The method was systematized in Lilly's Christian Astrology (1647) and rooted in Ptolemy's Tetrabiblos. It gathers a short list of witnesses and asks what quality each one favors. The core factors are the Ascendant and its element, the ruler of the Ascendant by sign, the Moon by sign and by phase, the season of birth, and the sect of the chart, meaning whether it is a day or a night birth. The factors do not all carry equal weight, but together they form a picture. The elements sit behind all of this, so it helps to have the four elements in astrology clear before you begin.

Step One: The Ascendant and Its Ruler

The rising sign was treated as the strongest single witness to the body and its constitution. That is why temperament belongs so closely to the first house. The element of the Ascendant gives a first reading. A fire sign rising leans hot and dry (choleric), earth cold and dry (melancholic), air hot and wet (sanguine), water cold and wet (phlegmatic). Next you look at the planet that rules that sign, and you note its own nature and the sign it sits in. If Aries rises, Mars rules, and Mars is hot and dry, reinforcing the choleric note. If that same Mars sits in a watery sign, it is tempered toward moisture. This layering is why the Ascendant matters more than the Sun here, a point developed further in the piece on the four angles in astrology.

Step Two: The Moon by Sign and Phase

After the Ascendant, the Moon is the second great witness, because in classical physiology she governs the body's moisture and its rhythms. You weigh her twice. First by sign, using the same elemental grid as above. Then by phase. From new to first quarter the Moon was read as hot and moist, from first quarter to full as hot and dry, from full to last quarter as cold and dry, and from last quarter to new as cold and moist. A waxing Moon in a water sign is strongly moistening. A waning Moon in an earth sign is strongly drying. For the lunar picture in more depth, see moon phases in astrology.

Step Three: Season and Sect

Two broader factors round out the reading. The season of birth carried its own humor. Spring is hot and wet (sanguine), summer hot and dry (choleric), autumn cold and dry (melancholic), and winter cold and wet (phlegmatic). Sect adds one more nudge. A daytime birth belongs to the Sun's warm and dry party, so it leans slightly hotter and drier. A nighttime birth belongs to the Moon's cool and moist party, so it leans cooler and moister. These are gentle weights, not the deciding vote, but in a close tally they tip the balance.

Putting It Together: The Tally

The classical method is genuinely a tally. You take each witness, note whether it favors hot or cold and wet or dry, and see which pair of qualities dominates. The winning combination names the temperament and its element.

| Temperament | Qualities | Element | Humor | Signs | | --- | --- | --- | --- | --- | | Choleric | Hot and dry | Fire | Yellow bile | Aries, Leo, Sagittarius | | Sanguine | Hot and wet | Air | Blood | Gemini, Libra, Aquarius | | Melancholic | Cold and dry | Earth | Black bile | Taurus, Virgo, Capricorn | | Phlegmatic | Cold and wet | Water | Phlegm | Cancer, Scorpio, Pisces |

Few charts come out purely one type. Most people are a dominant temperament shaded by a second, for example a choleric-sanguine: hot overall, dry with a moist streak. The tradition welcomed this. It read the mixture rather than a single label, and it treated the element ties above as a map rather than a verdict. For the character side of each type, temperaments and the four elements goes deeper than we do here.

Frequently Asked Questions

Why not just use my Sun sign for temperament?

Because the classical tradition never did. Temperament was read as a balance of qualities gathered from the Ascendant and its ruler, the Moon, the season and the sect, with the rising sign counting for more than the Sun. The Sun sign is a modern shorthand. The older method is a tally of several witnesses.

What if my factors point to different temperaments?

That is normal and expected. Most charts produce a mixture, such as a choleric core with a sanguine streak. You take the dominant pair of qualities as the main temperament, and you read the runner-up as a secondary shading. The tradition valued the blend rather than forcing a single label.

Is this a medical assessment?

No. It is the classical language of constitution, the way physicians from Galen to Lilly described a person's balance of qualities. The humoral terms come from that old physiology.

Work It Out in Your Own Chart

To run this method, cast a free birth chart and note your Ascendant, its ruler, and your Moon by sign and phase. Then work the tally above. If you would rather have it done for you, a health report does the same weighing in the classical temperament frame rather than fortune-telling. Hold the result as a map of tendencies and self-knowledge.

Raşit Akgül

About the author

Raşit Akgül

Raşit Akgül is a software developer and astrology researcher, and the founder of AstroAk.

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