August 21 Birthday
Zodiac sign, birthstone, birth flower and more for everyone born on August 21.
The zodiac sign for August 21 is
Leo
Leo runs July 23 – August 22. August 21 is day 30 of 31 in Leo season, in the 3rd decan.
August 21 is on the Cusp of Exposure (Leo–Virgo).
People born near a sign change are often said to share traits of both signs.
Birthstone
Peridot
Also Spinel, Sardonyx
Birth flower
Gladiolus
Also poppy
Ruling planet
Sun
Decan ruler: Mars
How common
#60 of 366
11,697 US births a year
Day of the year
Day 233
Day 234 in a leap year
August 21 zodiac sign: Leo
Leo is the only sign ruled by the Sun, and Leos are said to shine like it. The Lion is linked with confidence, creativity, loyalty and a big, warm presence.
| Symbol | ♌ Lion |
|---|---|
| Dates | July 23 – August 22 |
| Element | Fire |
| Modality | Fixed |
| Ruling planet | Sun |
| Traits | confident, generous, dramatic, warm |
| Strengths | Creative, generous, warm-hearted and a natural leader. |
| Weaknesses | Proud, stubborn and fond of attention. |
| Opposite sign | Aquarius |
| Most compatible with | Aries, Gemini, Libra, Sagittarius, Aquarius |
The 3rd decan of Leo
Each sign is split into three decans of about ten days. August 21 falls in the 3rd decan, which is co-ruled by Mars, the planet of Aries. Astrologers say this adds a touch of Aries (bold, competitive) to the Leo personality.
August 21 birthstone: Peridot, Spinel and Sardonyx
Everyone born in August shares the same birthstones, and you can pick whichever you like.
| Stone | Color | Hardness (Mohs) | Said to symbolize |
|---|---|---|---|
| Peridot | Olive to lime green | 6.5–7 | Strength, and protection from bad dreams |
| Spinel | Red, pink, blue or black | 8 | Renewal and hope |
| Sardonyx | Bands of red and white | 6.5–7 | Courage, happiness and clear communication |
August 21 birth flower: Gladiolus and Poppy
- Gladiolus: strength of character and integrity
- Poppy: remembrance, imagination and peace
How common is an August 21 birthday?
August 21 is the 60th most common birthday in the US out of 366. An average of 11,697 babies were born on it each year from 1994 to 2014, 5% more than on an average day.
Based on US birth records, 1994–2014. See every date ranked.
What day of the week was August 21?
Here’s the day of the week August 21 fell on each year, and the Chinese zodiac animal for someone born that day.
| Birth date | Day of the week | Chinese zodiac |
|---|---|---|
| August 21, 2030 | Wednesday | Metal Dog |
| August 21, 2029 | Tuesday | Earth Rooster |
| August 21, 2028 | Monday | Earth Monkey |
| August 21, 2027 | Saturday | Fire Goat |
| August 21, 2026 | Friday | Fire Horse |
| August 21, 2025 | Thursday | Wood Snake |
| August 21, 2024 | Wednesday | Wood Dragon |
| August 21, 2023 | Monday | Water Rabbit |
| August 21, 2022 | Sunday | Water Tiger |
| August 21, 2021 | Saturday | Metal Ox |
| August 21, 2020 | Friday | Metal Rat |
| August 21, 2019 | Wednesday | Earth Pig |
| August 21, 2018 | Tuesday | Earth Dog |
| August 21, 2017 | Monday | Fire Rooster |
| August 21, 2016 | Sunday | Fire Monkey |
| August 21, 2015 | Friday | Wood Goat |
| August 21, 2014 | Thursday | Wood Horse |
| August 21, 2013 | Wednesday | Water Snake |
| August 21, 2012 | Tuesday | Water Dragon |
| August 21, 2011 | Sunday | Metal Rabbit |
| August 21, 2010 | Saturday | Metal Tiger |
| August 21, 2009 | Friday | Earth Ox |
| August 21, 2008 | Thursday | Earth Rat |
| August 21, 2007 | Tuesday | Fire Pig |
| August 21, 2006 | Monday | Fire Dog |
| August 21, 2005 | Sunday | Wood Rooster |
| August 21, 2004 | Saturday | Wood Monkey |
| August 21, 2003 | Thursday | Water Goat |
| August 21, 2002 | Wednesday | Water Horse |
| August 21, 2001 | Tuesday | Metal Snake |
| August 21, 2000 | Monday | Metal Dragon |
| August 21, 1999 | Saturday | Earth Rabbit |
| August 21, 1998 | Friday | Earth Tiger |
| August 21, 1997 | Thursday | Fire Ox |
| August 21, 1996 | Wednesday | Fire Rat |
| August 21, 1995 | Monday | Wood Pig |
| August 21, 1994 | Sunday | Wood Dog |
| August 21, 1993 | Saturday | Water Rooster |
| August 21, 1992 | Friday | Water Monkey |
| August 21, 1991 | Wednesday | Metal Goat |
| August 21, 1990 | Tuesday | Metal Horse |
| August 21, 1989 | Monday | Earth Snake |
| August 21, 1988 | Sunday | Earth Dragon |
| August 21, 1987 | Friday | Fire Rabbit |
| August 21, 1986 | Thursday | Fire Tiger |
| August 21, 1985 | Wednesday | Wood Ox |
| August 21, 1984 | Tuesday | Wood Rat |
| August 21, 1983 | Sunday | Water Pig |
| August 21, 1982 | Saturday | Water Dog |
| August 21, 1981 | Friday | Metal Rooster |
| August 21, 1980 | Thursday | Metal Monkey |
| August 21, 1979 | Tuesday | Earth Goat |
| August 21, 1978 | Monday | Earth Horse |
| August 21, 1977 | Sunday | Fire Snake |
| August 21, 1976 | Saturday | Fire Dragon |
| August 21, 1975 | Thursday | Wood Rabbit |
| August 21, 1974 | Wednesday | Wood Tiger |
| August 21, 1973 | Tuesday | Water Ox |
| August 21, 1972 | Monday | Water Rat |
| August 21, 1971 | Saturday | Metal Pig |
| August 21, 1970 | Friday | Metal Dog |
| August 21, 1969 | Thursday | Earth Rooster |
| August 21, 1968 | Wednesday | Earth Monkey |
| August 21, 1967 | Monday | Fire Goat |
| August 21, 1966 | Sunday | Fire Horse |
| August 21, 1965 | Saturday | Wood Snake |
| August 21, 1964 | Friday | Wood Dragon |
| August 21, 1963 | Wednesday | Water Rabbit |
| August 21, 1962 | Tuesday | Water Tiger |
| August 21, 1961 | Monday | Metal Ox |
| August 21, 1960 | Sunday | Metal Rat |
| August 21, 1959 | Friday | Earth Pig |
| August 21, 1958 | Thursday | Earth Dog |
| August 21, 1957 | Wednesday | Fire Rooster |
| August 21, 1956 | Tuesday | Fire Monkey |
| August 21, 1955 | Sunday | Wood Goat |
| August 21, 1954 | Saturday | Wood Horse |
| August 21, 1953 | Friday | Water Snake |
| August 21, 1952 | Thursday | Water Dragon |
| August 21, 1951 | Tuesday | Metal Rabbit |
| August 21, 1950 | Monday | Metal Tiger |
| August 21, 1949 | Sunday | Earth Ox |
| August 21, 1948 | Saturday | Earth Rat |
| August 21, 1947 | Thursday | Fire Pig |
| August 21, 1946 | Wednesday | Fire Dog |
| August 21, 1945 | Tuesday | Wood Rooster |
| August 21, 1944 | Monday | Wood Monkey |
| August 21, 1943 | Saturday | Water Goat |
| August 21, 1942 | Friday | Water Horse |
| August 21, 1941 | Thursday | Metal Snake |
| August 21, 1940 | Wednesday | Metal Dragon |
More about August 21
| Season (Northern Hemisphere) | Summer |
|---|---|
| Day of the year | 233 (234 in a leap year) |
| Days left in the year | 132 (132 in a leap year) |
Want your exact age or a countdown? Try the age calculator on our sister site Day Count Box.
August 21 birthday questions
- What zodiac sign is August 21?
- People born on August 21 are Leo (♌), the Lion. Leo season runs from July 23 – August 22.
- What is the birthstone for August 21?
- The birthstone for August 21 is the August birthstone: peridot, spinel and sardonyx.
- What is the birth flower for August 21?
- August’s birth flowers are the gladiolus and poppy.
- Is August 21 on a cusp?
- Yes. August 21 falls in the Cusp of Exposure, between Leo and Virgo.
- How rare is an August 21 birthday?
- August 21 is the 60th most common birthday in the US out of 366. An average of 11,697 babies were born on it each year from 1994 to 2014, 5% more than on an average day.
- What day of the year is August 21?
- August 21 is day 233 of the year, or day 234 in a leap year.