Australian surfing instructor Matt Scarff will be medically evacuated from Bali to Australia following a weekend attack outside a nightclub that left him in a medically induced coma.

A CareFlight medical team will fly to Bali from Darwin on Wednesday afternoon, and transfer the 41-year-old to Perth later in the evening.

Hurt in Bali: Matt Scarff. Credit:LinkedIn

He will be taken to the Royal Perth Hospital to receive treatment for head injuries suffered in the attack outside the Townhouse club in upscale Seminyak early on Saturday morning.

Mr Scarff, who is well known in Byron Bay and Bali, has undergone surgery to remove a blood clot and release pressure on his brain after he was king hit outside the club.