A 22-year-old Sudanese refugee has been fined $5,000 for hitting another woman in the face with a stiletto heel outside a Subiaco nightclub in Perth.

The Perth Magistrates Court heard Atem Isaac Chol lashed out after she was punched, racially taunted and had her wig wrenched from her head.

The stiletto victim suffered a cut to her face that required stitches, and one of her teeth was also broken.

Chol's lawyer said the attack was out of character and his client was extremely remorseful for what had happened.

Chol pleaded guilty to a charge of unlawful wounding, while two other assault charges against her were withdrawn.

Magistrate Guiseppe Cicchini said a substantial fine was needed to send a message to the community that offences like Chol's will not be tolerated by the community.