Born on 15 December: Star Sign, Birthstone and Birthday Facts

October 7, 2026

If your birthday is on 15 December, your star sign is Sagittarius (the Archer, 22 November to 21 December), your birthstone is turquoise and your birth flower is holly and narcissus.

15 December is the 349th day of the year (the 350th in a leap year). In 2026 it falls on a Tuesday, and in 2027 on a Wednesday.

Star signs are just for fun, but they're a nice way to make a card or gift feel personal.

Sagittarius personality traits

Adventurous and optimistic
Loves travel
Funny
Independent
Honest

Birthday gift ideas for 15 December

A travel experience
A scratch-off world map
Luggage tags
Something with turquoise, the December birthstone
A bunch of hollys, the December birth flower

Birthday messages for a 15 December birthday

Happy birthday to my favourite adventurer!
Aim high, Sagittarius. Happy birthday!
Wishing you a year full of new places and big laughs.
Happy 15th of December! 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 15 December?

Sagittarius (22 November to 21 December).

What is the birthstone for 15 December?

Turquoise, the birthstone for everyone born in December.

What is the birth flower for 15 December?

Holly and narcissus.

What day is 15 December 2026?

Tuesday.

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