August 15 zodiac sign
The August 15 Sun sits at about 22° Leo, inside the Aries decan, a stretch where Mars gives the lion a competitive spark and an appetite for learning things quickly.
Sun signLeo
- Sun at 21°–24° Leo
- 3rd decan · Mars
August 15 in profile
At 22° Leo is experienced and assured, a sign that knows its strengths and wants to test them. The third decan’s sub-sign is Aries and its sub-ruler Mars, which turns pride into a spur. An August 15 Leo is happiest learning in public, trying a new skill where others can see the progress. Fixed fire keeps the effort going; Mars keeps it brisk, so slow, abstract study tends to lose out to hands-on practice.
Friendship with them has a sporting flavour. They are the friend who suggests a tennis match, keeps score in board games and buys the winner a drink either way. They defend friends fiercely in their absence and tease them mercilessly in person. Groups often form around them, partly because they remember everyone’s news and partly because they make plans happen.
Curiosity is practical. They would rather take an engine apart, learn a recipe by cooking it, or try a language on a waiter than read about any of it first. Courses with a certificate or a performance at the end suit them. The useful habit is staying past the fast early gains, since the dull middle of learning is where Leo pride most wants to quit.
Leo all day
In every year from 1930 to 2040 the Sun was in Leo for the whole of August 15, in every time zone. This is not a cusp birthday: the nearest changes of sign fall around July 23 and August 22.
Your Moon sign depends on the year
The Sun is in the same place on August 15 every year; the Moon is not. It changes sign every two and a half days, so people who share this birthday can have any of the twelve Moon signs. Here is where it was on August 15 in recent years, from 00:00 to 23:59 UTC (an arrow means it changed sign during the day).
- 2017Taurus → Gemini
- 2018Libra
- 2019Aquarius
- 2020Cancer
- 2021Scorpio
- 2022Aries
- 2023Leo
- 2024Sagittarius → Capricorn
- 2025Taurus
- 2026Virgo → Libra
Compatible signs for a Leo
Sun-sign compatibility starts from the element. Leo gets on most easily with its own element and with the two sextile signs, and feels the strongest pull from its opposite. For an August 15 birthday, in the Aries decan, Aries is a natural match. The full charts decide how a real pairing feels.
A gift for an August 15 birthday
A short, hands-on course with a visible result, such as knife skills, blacksmithing for a day or a beginner surf lesson, booked with a friend.
Asked about August 15
What zodiac sign is August 15?
August 15 is Leo in every year: the Sun is at about 21°–24° Leo that day, in the sign’s 3rd decan.
Is August 15 a cusp birthday?
No. The Sun is well inside Leo on August 15. The cusp days, when the Sun changes sign, fall around July 23 and August 22. Astrology has no blended cusp signs anyway: at any moment the Sun is in one sign.
What decan is August 15?
August 15 falls in the 3rd decan of Leo. In the triplicity system we use, that decan belongs to Aries and its ruler Mars, which colours the Leo Sun with a little of Aries.
Your birthday is only the Sun
An August 15 birthday tells you where the Sun was. The Moon, the Rising sign and eight more planets each sit somewhere of their own, and they depend on the year, the hour and the place. The free calculator shows all of them.