Born on 21 August: Star Sign, Birthstone and Birthday Facts

October 7, 2026

If your birthday is on 21 August, your star sign is Leo (the Lion, 23 July to 22 August), your birthstone is peridot and your birth flower is gladiolus and poppy.

21 August is the 233rd day of the year (the 234th in a leap year). In 2026 it falls on a Friday, and in 2027 on a Saturday.

21 August is close to the change of star sign, so some people born today read the neighbouring sign too. The exact cut-off shifts slightly from year to year.

Leo personality traits

Confident and warm
Loves the spotlight
Generous
Loyal
Dramatic (in a good way)

Birthday gift ideas for 21 August

Something gold
A glamorous night out
A personalised portrait
Something with peridot, the August birthstone
A bunch of gladioluss, the August birth flower

Birthday messages for a 21 August birthday

Happy birthday to the star of the show!
Roar into your birthday, Leo. You deserve the spotlight.
Shine bright today and every day.
Happy 21st of August! Hope your day is as brilliant as you are.

Key things to remember

Pair a star sign card with a small birthstone gift for a personal touch.

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Frequently asked questions

What star sign is 21 August?

Leo (23 July to 22 August).

What is the birthstone for 21 August?

Peridot, the birthstone for everyone born in August.

What is the birth flower for 21 August?

Gladiolus and poppy.

What day is 21 August 2026?

Friday.

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