Grand Ayatollah Sistani explains some rulings regarding puberty:
Question: How is puberty confirmed?
Answer: Puberty in males could be confirmed if one of three signs was present.
1. First: Completion of fifteen lunar calendar years of age (equal to 14 years and seven months and fifteen days of the solar calendar).
2. Second: Ejaculation through sexual intercourse or seminal discharge while awake or asleep.
3. Third: The presence of pubic hair, of the rough type, similar to head hair.
4. Fourth: The presence of hair on the face and above the lips.
Question: When is a girl considered adult from the viewpoint of Sharia?
Answer: She is considered adult at the completion of nine lunar years (equal to eight years and eight months and twenty days of the solar calendar).
source : hawzahnews
